Home / 395,678.47-593,600.75-129,418.21

Finding the Fourth Proportional to 395,678.47, 593,600.75 and 129,418.21

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Solution

The fourth proportional to 395,678.47, 593,600.75 and 129,418.21 is: 194,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,678.47 : 593,600.75 = 129,418.21 : x
  2. Step 2: Convert to fraction form
    395,678.47/593,600.75 = 129,418.21/x
  3. Step 3: Cross multiply
    395,678.47x = 593,600.75 × 129,418.21
  4. Step 4: Simplify right side
    395,678.47x = 76,822,744,488.86
  5. Step 5: Solve for x
    x = 76,822,744,488.86/395,678.47
  6. Step 6: Final answer
    x = 194,154.47

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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.