Home / 398,548.20-598,743.90-274,132.20

Finding the Fourth Proportional to 398,548.20, 598,743.90 and 274,132.20

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Solution

The fourth proportional to 398,548.20, 598,743.90 and 274,132.20 is: 411,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,548.20 : 598,743.90 = 274,132.20 : x
  2. Step 2: Convert to fraction form
    398,548.20/598,743.90 = 274,132.20/x
  3. Step 3: Cross multiply
    398,548.20x = 598,743.90 × 274,132.20
  4. Step 4: Simplify right side
    398,548.20x = 164,134,982,543.58
  5. Step 5: Solve for x
    x = 164,134,982,543.58/398,548.20
  6. Step 6: Final answer
    x = 411,832.20

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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.