Home / 485,962.98-728,895.25-131,012.88

Finding the Fourth Proportional to 485,962.98, 728,895.25 and 131,012.88

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Solution

The fourth proportional to 485,962.98, 728,895.25 and 131,012.88 is: 196,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,962.98 : 728,895.25 = 131,012.88 : x
  2. Step 2: Convert to fraction form
    485,962.98/728,895.25 = 131,012.88/x
  3. Step 3: Cross multiply
    485,962.98x = 728,895.25 × 131,012.88
  4. Step 4: Simplify right side
    485,962.98x = 95,494,665,920.82
  5. Step 5: Solve for x
    x = 95,494,665,920.82/485,962.98
  6. Step 6: Final answer
    x = 196,506.05

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1.5x scale

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.