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Finding the Fourth Proportional to 563,502.29, 777,388.77 and 372,781.31

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Solution

The fourth proportional to 563,502.29, 777,388.77 and 372,781.31 is: 514,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,502.29 : 777,388.77 = 372,781.31 : x
  2. Step 2: Convert to fraction form
    563,502.29/777,388.77 = 372,781.31/x
  3. Step 3: Cross multiply
    563,502.29x = 777,388.77 × 372,781.31
  4. Step 4: Simplify right side
    563,502.29x = 289,796,000,172.95
  5. Step 5: Solve for x
    x = 289,796,000,172.95/563,502.29
  6. Step 6: Final answer
    x = 514,276.53

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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.