Home / 398,779.48-598,270.02-132,541.30

Finding the Fourth Proportional to 398,779.48, 598,270.02 and 132,541.30

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Solution

The fourth proportional to 398,779.48, 598,270.02 and 132,541.30 is: 198,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,779.48 : 598,270.02 = 132,541.30 : x
  2. Step 2: Convert to fraction form
    398,779.48/598,270.02 = 132,541.30/x
  3. Step 3: Cross multiply
    398,779.48x = 598,270.02 × 132,541.30
  4. Step 4: Simplify right side
    398,779.48x = 79,295,486,201.83
  5. Step 5: Solve for x
    x = 79,295,486,201.83/398,779.48
  6. Step 6: Final answer
    x = 198,845.45

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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.