Home / 502,778.22-693,836.55-276,438.30

Finding the Fourth Proportional to 502,778.22, 693,836.55 and 276,438.30

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Solution

The fourth proportional to 502,778.22, 693,836.55 and 276,438.30 is: 381,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,778.22 : 693,836.55 = 276,438.30 : x
  2. Step 2: Convert to fraction form
    502,778.22/693,836.55 = 276,438.30/x
  3. Step 3: Cross multiply
    502,778.22x = 693,836.55 × 276,438.30
  4. Step 4: Simplify right side
    502,778.22x = 191,802,996,359.87
  5. Step 5: Solve for x
    x = 191,802,996,359.87/502,778.22
  6. Step 6: Final answer
    x = 381,486.29

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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.