Home / 862,120.40-1,293,003.96-542,125.52

Finding the Fourth Proportional to 862,120.40, 1,293,003.96 and 542,125.52

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Solution

The fourth proportional to 862,120.40, 1,293,003.96 and 542,125.52 is: 813,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,120.40 : 1,293,003.96 = 542,125.52 : x
  2. Step 2: Convert to fraction form
    862,120.40/1,293,003.96 = 542,125.52/x
  3. Step 3: Cross multiply
    862,120.40x = 1,293,003.96 × 542,125.52
  4. Step 4: Simplify right side
    862,120.40x = 700,970,444,177.06
  5. Step 5: Solve for x
    x = 700,970,444,177.06/862,120.40
  6. Step 6: Final answer
    x = 813,077.20

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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.