Home / 726,165.18-1,002,102.30-399,471.12

Finding the Fourth Proportional to 726,165.18, 1,002,102.30 and 399,471.12

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Solution

The fourth proportional to 726,165.18, 1,002,102.30 and 399,471.12 is: 551,267.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,165.18 : 1,002,102.30 = 399,471.12 : x
  2. Step 2: Convert to fraction form
    726,165.18/1,002,102.30 = 399,471.12/x
  3. Step 3: Cross multiply
    726,165.18x = 1,002,102.30 × 399,471.12
  4. Step 4: Simplify right side
    726,165.18x = 400,310,928,135.58
  5. Step 5: Solve for x
    x = 400,310,928,135.58/726,165.18
  6. Step 6: Final answer
    x = 551,267.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.