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Finding the Fourth Proportional to 502,221.33, 693,070.52 and 272,780.82

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Solution

The fourth proportional to 502,221.33, 693,070.52 and 272,780.82 is: 376,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,221.33 : 693,070.52 = 272,780.82 : x
  2. Step 2: Convert to fraction form
    502,221.33/693,070.52 = 272,780.82/x
  3. Step 3: Cross multiply
    502,221.33x = 693,070.52 × 272,780.82
  4. Step 4: Simplify right side
    502,221.33x = 189,056,343,399.52
  5. Step 5: Solve for x
    x = 189,056,343,399.52/502,221.33
  6. Step 6: Final answer
    x = 376,440.29

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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.