Home / 719,527.92-992,922.48-397,231.20

Finding the Fourth Proportional to 719,527.92, 992,922.48 and 397,231.20

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Solution

The fourth proportional to 719,527.92, 992,922.48 and 397,231.20 is: 548,164.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,527.92 : 992,922.48 = 397,231.20 : x
  2. Step 2: Convert to fraction form
    719,527.92/992,922.48 = 397,231.20/x
  3. Step 3: Cross multiply
    719,527.92x = 992,922.48 × 397,231.20
  4. Step 4: Simplify right side
    719,527.92x = 394,419,788,237.38
  5. Step 5: Solve for x
    x = 394,419,788,237.38/719,527.92
  6. Step 6: Final answer
    x = 548,164.67

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.