Home / 918,114.76-1,376,248.33-378,764.43

Finding the Fourth Proportional to 918,114.76, 1,376,248.33 and 378,764.43

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Solution

The fourth proportional to 918,114.76, 1,376,248.33 and 378,764.43 is: 567,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,114.76 : 1,376,248.33 = 378,764.43 : x
  2. Step 2: Convert to fraction form
    918,114.76/1,376,248.33 = 378,764.43/x
  3. Step 3: Cross multiply
    918,114.76x = 1,376,248.33 × 378,764.43
  4. Step 4: Simplify right side
    918,114.76x = 521,273,914,250.90
  5. Step 5: Solve for x
    x = 521,273,914,250.90/918,114.76
  6. Step 6: Final answer
    x = 567,765.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.