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Finding the Fourth Proportional to 564,751.68, 779,427.54 and 323,000.70

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Solution

The fourth proportional to 564,751.68, 779,427.54 and 323,000.70 is: 445,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,751.68 : 779,427.54 = 323,000.70 : x
  2. Step 2: Convert to fraction form
    564,751.68/779,427.54 = 323,000.70/x
  3. Step 3: Cross multiply
    564,751.68x = 779,427.54 × 323,000.70
  4. Step 4: Simplify right side
    564,751.68x = 251,755,641,019.28
  5. Step 5: Solve for x
    x = 251,755,641,019.28/564,751.68
  6. Step 6: Final answer
    x = 445,781.13

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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.