Home / 485,962.26-728,894.18-131,012.16

Finding the Fourth Proportional to 485,962.26, 728,894.18 and 131,012.16

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Solution

The fourth proportional to 485,962.26, 728,894.18 and 131,012.16 is: 196,504.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,962.26 : 728,894.18 = 131,012.16 : x
  2. Step 2: Convert to fraction form
    485,962.26/728,894.18 = 131,012.16/x
  3. Step 3: Cross multiply
    485,962.26x = 728,894.18 × 131,012.16
  4. Step 4: Simplify right side
    485,962.26x = 95,494,001,890.49
  5. Step 5: Solve for x
    x = 95,494,001,890.49/485,962.26
  6. Step 6: Final answer
    x = 196,504.97

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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.