Home / 1,012,892.80-1,519,339.20-413,460.40

Finding the Fourth Proportional to 1,012,892.80, 1,519,339.20 and 413,460.40

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Solution

The fourth proportional to 1,012,892.80, 1,519,339.20 and 413,460.40 is: 620,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,892.80 : 1,519,339.20 = 413,460.40 : x
  2. Step 2: Convert to fraction form
    1,012,892.80/1,519,339.20 = 413,460.40/x
  3. Step 3: Cross multiply
    1,012,892.80x = 1,519,339.20 × 413,460.40
  4. Step 4: Simplify right side
    1,012,892.80x = 628,186,593,367.68
  5. Step 5: Solve for x
    x = 628,186,593,367.68/1,012,892.80
  6. Step 6: Final answer
    x = 620,190.60

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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.