Home / 667,918.90-1,002,534.45-331,339.60

Finding the Fourth Proportional to 667,918.90, 1,002,534.45 and 331,339.60

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Solution

The fourth proportional to 667,918.90, 1,002,534.45 and 331,339.60 is: 497,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,918.90 : 1,002,534.45 = 331,339.60 : x
  2. Step 2: Convert to fraction form
    667,918.90/1,002,534.45 = 331,339.60/x
  3. Step 3: Cross multiply
    667,918.90x = 1,002,534.45 × 331,339.60
  4. Step 4: Simplify right side
    667,918.90x = 332,179,363,649.22
  5. Step 5: Solve for x
    x = 332,179,363,649.22/667,918.90
  6. Step 6: Final answer
    x = 497,334.88

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1.5x scale

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.