Home / 439,728.20-658,814.70-372,854.60

Finding the Fourth Proportional to 439,728.20, 658,814.70 and 372,854.60

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Solution

The fourth proportional to 439,728.20, 658,814.70 and 372,854.60 is: 558,622.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,728.20 : 658,814.70 = 372,854.60 : x
  2. Step 2: Convert to fraction form
    439,728.20/658,814.70 = 372,854.60/x
  3. Step 3: Cross multiply
    439,728.20x = 658,814.70 × 372,854.60
  4. Step 4: Simplify right side
    439,728.20x = 245,642,091,442.62
  5. Step 5: Solve for x
    x = 245,642,091,442.62/439,728.20
  6. Step 6: Final answer
    x = 558,622.56

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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.