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Finding the Fourth Proportional to 458,096.01, 687,143.56 and 313,859.71

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Solution

The fourth proportional to 458,096.01, 687,143.56 and 313,859.71 is: 470,789.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,096.01 : 687,143.56 = 313,859.71 : x
  2. Step 2: Convert to fraction form
    458,096.01/687,143.56 = 313,859.71/x
  3. Step 3: Cross multiply
    458,096.01x = 687,143.56 × 313,859.71
  4. Step 4: Simplify right side
    458,096.01x = 215,666,678,469.97
  5. Step 5: Solve for x
    x = 215,666,678,469.97/458,096.01
  6. Step 6: Final answer
    x = 470,789.25

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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.