Home / 439,231.60-658,847.40-386,743.60

Finding the Fourth Proportional to 439,231.60, 658,847.40 and 386,743.60

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Solution

The fourth proportional to 439,231.60, 658,847.40 and 386,743.60 is: 580,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,231.60 : 658,847.40 = 386,743.60 : x
  2. Step 2: Convert to fraction form
    439,231.60/658,847.40 = 386,743.60/x
  3. Step 3: Cross multiply
    439,231.60x = 658,847.40 × 386,743.60
  4. Step 4: Simplify right side
    439,231.60x = 254,805,015,326.64
  5. Step 5: Solve for x
    x = 254,805,015,326.64/439,231.60
  6. Step 6: Final answer
    x = 580,115.40

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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.