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Finding the Fourth Proportional to 398,793.52, 598,470.84 and 360,679

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Solution

The fourth proportional to 398,793.52, 598,470.84 and 360,679 is: 541,272.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,793.52 : 598,470.84 = 360,679 : x
  2. Step 2: Convert to fraction form
    398,793.52/598,470.84 = 360,679/x
  3. Step 3: Cross multiply
    398,793.52x = 598,470.84 × 360,679
  4. Step 4: Simplify right side
    398,793.52x = 215,855,864,100.36
  5. Step 5: Solve for x
    x = 215,855,864,100.36/398,793.52
  6. Step 6: Final answer
    x = 541,272.25

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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.