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Finding the Fourth Proportional to 502,685.16, 693,687.96 and 276,329.04

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Solution

The fourth proportional to 502,685.16, 693,687.96 and 276,329.04 is: 381,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,685.16 : 693,687.96 = 276,329.04 : x
  2. Step 2: Convert to fraction form
    502,685.16/693,687.96 = 276,329.04/x
  3. Step 3: Cross multiply
    502,685.16x = 693,687.96 × 276,329.04
  4. Step 4: Simplify right side
    502,685.16x = 191,686,128,046.36
  5. Step 5: Solve for x
    x = 191,686,128,046.36/502,685.16
  6. Step 6: Final answer
    x = 381,324.42

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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.