Home / 725,440.17-1,088,160.24-325,613.86

Finding the Fourth Proportional to 725,440.17, 1,088,160.24 and 325,613.86

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Solution

The fourth proportional to 725,440.17, 1,088,160.24 and 325,613.86 is: 488,420.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,440.17 : 1,088,160.24 = 325,613.86 : x
  2. Step 2: Convert to fraction form
    725,440.17/1,088,160.24 = 325,613.86/x
  3. Step 3: Cross multiply
    725,440.17x = 1,088,160.24 × 325,613.86
  4. Step 4: Simplify right side
    725,440.17x = 354,320,055,975.35
  5. Step 5: Solve for x
    x = 354,320,055,975.35/725,440.17
  6. Step 6: Final answer
    x = 488,420.78

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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.