Home / 728,117.55-1,092,176.33-413,189.55

Finding the Fourth Proportional to 728,117.55, 1,092,176.33 and 413,189.55

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Solution

The fourth proportional to 728,117.55, 1,092,176.33 and 413,189.55 is: 619,784.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,117.55 : 1,092,176.33 = 413,189.55 : x
  2. Step 2: Convert to fraction form
    728,117.55/1,092,176.33 = 413,189.55/x
  3. Step 3: Cross multiply
    728,117.55x = 1,092,176.33 × 413,189.55
  4. Step 4: Simplify right side
    728,117.55x = 451,275,844,247.40
  5. Step 5: Solve for x
    x = 451,275,844,247.40/728,117.55
  6. Step 6: Final answer
    x = 619,784.33

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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.