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Finding the Fourth Proportional to 502,680.66, 693,681.75 and 276,324.54

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Solution

The fourth proportional to 502,680.66, 693,681.75 and 276,324.54 is: 381,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,680.66 : 693,681.75 = 276,324.54 : x
  2. Step 2: Convert to fraction form
    502,680.66/693,681.75 = 276,324.54/x
  3. Step 3: Cross multiply
    502,680.66x = 693,681.75 × 276,324.54
  4. Step 4: Simplify right side
    502,680.66x = 191,681,290,475.15
  5. Step 5: Solve for x
    x = 191,681,290,475.15/502,680.66
  6. Step 6: Final answer
    x = 381,318.21

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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.