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Finding the Fourth Proportional to 978,461.06, 1,350,273.90 and 542,944.58

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Solution

The fourth proportional to 978,461.06, 1,350,273.90 and 542,944.58 is: 749,262.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,461.06 : 1,350,273.90 = 542,944.58 : x
  2. Step 2: Convert to fraction form
    978,461.06/1,350,273.90 = 542,944.58/x
  3. Step 3: Cross multiply
    978,461.06x = 1,350,273.90 × 542,944.58
  4. Step 4: Simplify right side
    978,461.06x = 733,123,895,520.46
  5. Step 5: Solve for x
    x = 733,123,895,520.46/978,461.06
  6. Step 6: Final answer
    x = 749,262.21

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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.