Home / 681,306.40-1,021,959.60-443,360.80

Finding the Fourth Proportional to 681,306.40, 1,021,959.60 and 443,360.80

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Solution

The fourth proportional to 681,306.40, 1,021,959.60 and 443,360.80 is: 665,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,306.40 : 1,021,959.60 = 443,360.80 : x
  2. Step 2: Convert to fraction form
    681,306.40/1,021,959.60 = 443,360.80/x
  3. Step 3: Cross multiply
    681,306.40x = 1,021,959.60 × 443,360.80
  4. Step 4: Simplify right side
    681,306.40x = 453,096,825,823.68
  5. Step 5: Solve for x
    x = 453,096,825,823.68/681,306.40
  6. Step 6: Final answer
    x = 665,041.20

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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.