Home / 399,034.12-598,624.14-132,769.36

Finding the Fourth Proportional to 399,034.12, 598,624.14 and 132,769.36

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Solution

The fourth proportional to 399,034.12, 598,624.14 and 132,769.36 is: 199,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,034.12 : 598,624.14 = 132,769.36 : x
  2. Step 2: Convert to fraction form
    399,034.12/598,624.14 = 132,769.36/x
  3. Step 3: Cross multiply
    399,034.12x = 598,624.14 × 132,769.36
  4. Step 4: Simplify right side
    399,034.12x = 79,478,943,948.35
  5. Step 5: Solve for x
    x = 79,478,943,948.35/399,034.12
  6. Step 6: Final answer
    x = 199,178.32

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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.