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Finding the Fourth Proportional to 557,776.68, 769,737.82 and 303,127.92

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Solution

The fourth proportional to 557,776.68, 769,737.82 and 303,127.92 is: 418,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,776.68 : 769,737.82 = 303,127.92 : x
  2. Step 2: Convert to fraction form
    557,776.68/769,737.82 = 303,127.92/x
  3. Step 3: Cross multiply
    557,776.68x = 769,737.82 × 303,127.92
  4. Step 4: Simplify right side
    557,776.68x = 233,329,024,321.93
  5. Step 5: Solve for x
    x = 233,329,024,321.93/557,776.68
  6. Step 6: Final answer
    x = 418,319.79

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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.