Home / 445,326.90-667,407.15-395,171.70

Finding the Fourth Proportional to 445,326.90, 667,407.15 and 395,171.70

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Solution

The fourth proportional to 445,326.90, 667,407.15 and 395,171.70 is: 592,240.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,326.90 : 667,407.15 = 395,171.70 : x
  2. Step 2: Convert to fraction form
    445,326.90/667,407.15 = 395,171.70/x
  3. Step 3: Cross multiply
    445,326.90x = 667,407.15 × 395,171.70
  4. Step 4: Simplify right side
    445,326.90x = 263,740,418,057.66
  5. Step 5: Solve for x
    x = 263,740,418,057.66/445,326.90
  6. Step 6: Final answer
    x = 592,240.03

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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.