Home / 398,420.75-597,748.17-117,945.29

Finding the Fourth Proportional to 398,420.75, 597,748.17 and 117,945.29

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Solution

The fourth proportional to 398,420.75, 597,748.17 and 117,945.29 is: 176,952.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,420.75 : 597,748.17 = 117,945.29 : x
  2. Step 2: Convert to fraction form
    398,420.75/597,748.17 = 117,945.29/x
  3. Step 3: Cross multiply
    398,420.75x = 597,748.17 × 117,945.29
  4. Step 4: Simplify right side
    398,420.75x = 70,501,581,257.62
  5. Step 5: Solve for x
    x = 70,501,581,257.62/398,420.75
  6. Step 6: Final answer
    x = 176,952.58

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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.