Home / 728,410.60-1,092,615.90-374,116.60

Finding the Fourth Proportional to 728,410.60, 1,092,615.90 and 374,116.60

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Solution

The fourth proportional to 728,410.60, 1,092,615.90 and 374,116.60 is: 561,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,410.60 : 1,092,615.90 = 374,116.60 : x
  2. Step 2: Convert to fraction form
    728,410.60/1,092,615.90 = 374,116.60/x
  3. Step 3: Cross multiply
    728,410.60x = 1,092,615.90 × 374,116.60
  4. Step 4: Simplify right side
    728,410.60x = 408,765,745,613.94
  5. Step 5: Solve for x
    x = 408,765,745,613.94/728,410.60
  6. Step 6: Final answer
    x = 561,174.90

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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.