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Finding the Fourth Proportional to 545,233.28, 817,802.94 and 331,945.97

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Solution

The fourth proportional to 545,233.28, 817,802.94 and 331,945.97 is: 497,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,233.28 : 817,802.94 = 331,945.97 : x
  2. Step 2: Convert to fraction form
    545,233.28/817,802.94 = 331,945.97/x
  3. Step 3: Cross multiply
    545,233.28x = 817,802.94 × 331,945.97
  4. Step 4: Simplify right side
    545,233.28x = 271,466,390,187.15
  5. Step 5: Solve for x
    x = 271,466,390,187.15/545,233.28
  6. Step 6: Final answer
    x = 497,890.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.