Home / 437,345.60-655,928.80-121,723.20

Finding the Fourth Proportional to 437,345.60, 655,928.80 and 121,723.20

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Solution

The fourth proportional to 437,345.60, 655,928.80 and 121,723.20 is: 182,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,345.60 : 655,928.80 = 121,723.20 : x
  2. Step 2: Convert to fraction form
    437,345.60/655,928.80 = 121,723.20/x
  3. Step 3: Cross multiply
    437,345.60x = 655,928.80 × 121,723.20
  4. Step 4: Simplify right side
    437,345.60x = 79,841,752,508.16
  5. Step 5: Solve for x
    x = 79,841,752,508.16/437,345.60
  6. Step 6: Final answer
    x = 182,559.86

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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.