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Finding the Fourth Proportional to 656,737.56, 906,209.40 and 381,088.08

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Solution

The fourth proportional to 656,737.56, 906,209.40 and 381,088.08 is: 525,850.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,737.56 : 906,209.40 = 381,088.08 : x
  2. Step 2: Convert to fraction form
    656,737.56/906,209.40 = 381,088.08/x
  3. Step 3: Cross multiply
    656,737.56x = 906,209.40 × 381,088.08
  4. Step 4: Simplify right side
    656,737.56x = 345,345,600,323.95
  5. Step 5: Solve for x
    x = 345,345,600,323.95/656,737.56
  6. Step 6: Final answer
    x = 525,850.24

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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.