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Finding the Fourth Proportional to 545,341.17, 752,376 and 315,773.13

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Solution

The fourth proportional to 545,341.17, 752,376 and 315,773.13 is: 435,654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,341.17 : 752,376 = 315,773.13 : x
  2. Step 2: Convert to fraction form
    545,341.17/752,376 = 315,773.13/x
  3. Step 3: Cross multiply
    545,341.17x = 752,376 × 315,773.13
  4. Step 4: Simplify right side
    545,341.17x = 237,580,124,456.88
  5. Step 5: Solve for x
    x = 237,580,124,456.88/545,341.17
  6. Step 6: Final answer
    x = 435,654.11

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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.