Home / 1,013,402.80-1,520,104.20-413,970.40

Finding the Fourth Proportional to 1,013,402.80, 1,520,104.20 and 413,970.40

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Solution

The fourth proportional to 1,013,402.80, 1,520,104.20 and 413,970.40 is: 620,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,402.80 : 1,520,104.20 = 413,970.40 : x
  2. Step 2: Convert to fraction form
    1,013,402.80/1,520,104.20 = 413,970.40/x
  3. Step 3: Cross multiply
    1,013,402.80x = 1,520,104.20 × 413,970.40
  4. Step 4: Simplify right side
    1,013,402.80x = 629,278,143,715.68
  5. Step 5: Solve for x
    x = 629,278,143,715.68/1,013,402.80
  6. Step 6: Final answer
    x = 620,955.60

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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.