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Finding the Fourth Proportional to 565,569.61, 780,501.17 and 307,463.85

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Solution

The fourth proportional to 565,569.61, 780,501.17 and 307,463.85 is: 424,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,569.61 : 780,501.17 = 307,463.85 : x
  2. Step 2: Convert to fraction form
    565,569.61/780,501.17 = 307,463.85/x
  3. Step 3: Cross multiply
    565,569.61x = 780,501.17 × 307,463.85
  4. Step 4: Simplify right side
    565,569.61x = 239,975,894,657.71
  5. Step 5: Solve for x
    x = 239,975,894,657.71/565,569.61
  6. Step 6: Final answer
    x = 424,308.33

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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.