Home / 502,372.81-693,273.36-287,517.07

Finding the Fourth Proportional to 502,372.81, 693,273.36 and 287,517.07

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Solution

The fourth proportional to 502,372.81, 693,273.36 and 287,517.07 is: 396,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,372.81 : 693,273.36 = 287,517.07 : x
  2. Step 2: Convert to fraction form
    502,372.81/693,273.36 = 287,517.07/x
  3. Step 3: Cross multiply
    502,372.81x = 693,273.36 × 287,517.07
  4. Step 4: Simplify right side
    502,372.81x = 199,327,925,176.26
  5. Step 5: Solve for x
    x = 199,327,925,176.26/502,372.81
  6. Step 6: Final answer
    x = 396,772.92

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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.