Home / 486,088.20-729,132.30-407,356.20

Finding the Fourth Proportional to 486,088.20, 729,132.30 and 407,356.20

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Solution

The fourth proportional to 486,088.20, 729,132.30 and 407,356.20 is: 611,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,088.20 : 729,132.30 = 407,356.20 : x
  2. Step 2: Convert to fraction form
    486,088.20/729,132.30 = 407,356.20/x
  3. Step 3: Cross multiply
    486,088.20x = 729,132.30 × 407,356.20
  4. Step 4: Simplify right side
    486,088.20x = 297,016,563,025.26
  5. Step 5: Solve for x
    x = 297,016,563,025.26/486,088.20
  6. Step 6: Final answer
    x = 611,034.30

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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.