Home / 347,780.20-521,014.20-324,160.60

Finding the Fourth Proportional to 347,780.20, 521,014.20 and 324,160.60

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Solution

The fourth proportional to 347,780.20, 521,014.20 and 324,160.60 is: 485,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,780.20 : 521,014.20 = 324,160.60 : x
  2. Step 2: Convert to fraction form
    347,780.20/521,014.20 = 324,160.60/x
  3. Step 3: Cross multiply
    347,780.20x = 521,014.20 × 324,160.60
  4. Step 4: Simplify right side
    347,780.20x = 168,892,275,680.52
  5. Step 5: Solve for x
    x = 168,892,275,680.52/347,780.20
  6. Step 6: Final answer
    x = 485,629.36

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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.