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Finding the Fourth Proportional to 502,353.44, 693,231.75 and 287,488.89

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Solution

The fourth proportional to 502,353.44, 693,231.75 and 287,488.89 is: 396,725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,353.44 : 693,231.75 = 287,488.89 : x
  2. Step 2: Convert to fraction form
    502,353.44/693,231.75 = 287,488.89/x
  3. Step 3: Cross multiply
    502,353.44x = 693,231.75 × 287,488.89
  4. Step 4: Simplify right side
    502,353.44x = 199,296,429,997.96
  5. Step 5: Solve for x
    x = 199,296,429,997.96/502,353.44
  6. Step 6: Final answer
    x = 396,725.52

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1.5x scale

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.