Home / 726,088.80-1,002,002.40-408,136.80

Finding the Fourth Proportional to 726,088.80, 1,002,002.40 and 408,136.80

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Solution

The fourth proportional to 726,088.80, 1,002,002.40 and 408,136.80 is: 563,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,088.80 : 1,002,002.40 = 408,136.80 : x
  2. Step 2: Convert to fraction form
    726,088.80/1,002,002.40 = 408,136.80/x
  3. Step 3: Cross multiply
    726,088.80x = 1,002,002.40 × 408,136.80
  4. Step 4: Simplify right side
    726,088.80x = 408,954,053,128.32
  5. Step 5: Solve for x
    x = 408,954,053,128.32/726,088.80
  6. Step 6: Final answer
    x = 563,228.70

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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.