Home / 840,456.55-1,254,129.70-749,876.53

Finding the Fourth Proportional to 840,456.55, 1,254,129.70 and 749,876.53

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Solution

The fourth proportional to 840,456.55, 1,254,129.70 and 749,876.53 is: 1,118,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,456.55 : 1,254,129.70 = 749,876.53 : x
  2. Step 2: Convert to fraction form
    840,456.55/1,254,129.70 = 749,876.53/x
  3. Step 3: Cross multiply
    840,456.55x = 1,254,129.70 × 749,876.53
  4. Step 4: Simplify right side
    840,456.55x = 940,442,427,605.94
  5. Step 5: Solve for x
    x = 940,442,427,605.94/840,456.55
  6. Step 6: Final answer
    x = 1,118,966.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.