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Finding the Fourth Proportional to 564,737.28, 779,346.56 and 310,112

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Solution

The fourth proportional to 564,737.28, 779,346.56 and 310,112 is: 427,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,737.28 : 779,346.56 = 310,112 : x
  2. Step 2: Convert to fraction form
    564,737.28/779,346.56 = 310,112/x
  3. Step 3: Cross multiply
    564,737.28x = 779,346.56 × 310,112
  4. Step 4: Simplify right side
    564,737.28x = 241,684,720,414.72
  5. Step 5: Solve for x
    x = 241,684,720,414.72/564,737.28
  6. Step 6: Final answer
    x = 427,959.56

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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.