Home / 695,331.60-1,042,997.40-274,390.80

Finding the Fourth Proportional to 695,331.60, 1,042,997.40 and 274,390.80

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Solution

The fourth proportional to 695,331.60, 1,042,997.40 and 274,390.80 is: 411,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,331.60 : 1,042,997.40 = 274,390.80 : x
  2. Step 2: Convert to fraction form
    695,331.60/1,042,997.40 = 274,390.80/x
  3. Step 3: Cross multiply
    695,331.60x = 1,042,997.40 × 274,390.80
  4. Step 4: Simplify right side
    695,331.60x = 286,188,890,983.92
  5. Step 5: Solve for x
    x = 286,188,890,983.92/695,331.60
  6. Step 6: Final answer
    x = 411,586.20

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Double scale
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Similar ratio
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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.