Home / 485,962.92-728,895.16-131,012.82

Finding the Fourth Proportional to 485,962.92, 728,895.16 and 131,012.82

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Solution

The fourth proportional to 485,962.92, 728,895.16 and 131,012.82 is: 196,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,962.92 : 728,895.16 = 131,012.82 : x
  2. Step 2: Convert to fraction form
    485,962.92/728,895.16 = 131,012.82/x
  3. Step 3: Cross multiply
    485,962.92x = 728,895.16 × 131,012.82
  4. Step 4: Simplify right side
    485,962.92x = 95,494,610,559.72
  5. Step 5: Solve for x
    x = 95,494,610,559.72/485,962.92
  6. Step 6: Final answer
    x = 196,505.96

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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.