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Finding the Fourth Proportional to 564,881.01, 779,532.78 and 306,755.70

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Solution

The fourth proportional to 564,881.01, 779,532.78 and 306,755.70 is: 423,321.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,881.01 : 779,532.78 = 306,755.70 : x
  2. Step 2: Convert to fraction form
    564,881.01/779,532.78 = 306,755.70/x
  3. Step 3: Cross multiply
    564,881.01x = 779,532.78 × 306,755.70
  4. Step 4: Simplify right side
    564,881.01x = 239,126,123,601.85
  5. Step 5: Solve for x
    x = 239,126,123,601.85/564,881.01
  6. Step 6: Final answer
    x = 423,321.23

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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.