Home / 1,013,428.80-1,520,143.20-413,996.40

Finding the Fourth Proportional to 1,013,428.80, 1,520,143.20 and 413,996.40

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Solution

The fourth proportional to 1,013,428.80, 1,520,143.20 and 413,996.40 is: 620,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,428.80 : 1,520,143.20 = 413,996.40 : x
  2. Step 2: Convert to fraction form
    1,013,428.80/1,520,143.20 = 413,996.40/x
  3. Step 3: Cross multiply
    1,013,428.80x = 1,520,143.20 × 413,996.40
  4. Step 4: Simplify right side
    1,013,428.80x = 629,333,812,284.48
  5. Step 5: Solve for x
    x = 629,333,812,284.48/1,013,428.80
  6. Step 6: Final answer
    x = 620,994.60

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.