Home / 485,331.48-669,560.15-322,064.97

Finding the Fourth Proportional to 485,331.48, 669,560.15 and 322,064.97

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Solution

The fourth proportional to 485,331.48, 669,560.15 and 322,064.97 is: 444,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,331.48 : 669,560.15 = 322,064.97 : x
  2. Step 2: Convert to fraction form
    485,331.48/669,560.15 = 322,064.97/x
  3. Step 3: Cross multiply
    485,331.48x = 669,560.15 × 322,064.97
  4. Step 4: Simplify right side
    485,331.48x = 215,641,869,622.95
  5. Step 5: Solve for x
    x = 215,641,869,622.95/485,331.48
  6. Step 6: Final answer
    x = 444,318.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.