Home / 461,748.60-691,966.80-321,343.20

Finding the Fourth Proportional to 461,748.60, 691,966.80 and 321,343.20

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Solution

The fourth proportional to 461,748.60, 691,966.80 and 321,343.20 is: 481,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,748.60 : 691,966.80 = 321,343.20 : x
  2. Step 2: Convert to fraction form
    461,748.60/691,966.80 = 321,343.20/x
  3. Step 3: Cross multiply
    461,748.60x = 691,966.80 × 321,343.20
  4. Step 4: Simplify right side
    461,748.60x = 222,358,825,805.76
  5. Step 5: Solve for x
    x = 222,358,825,805.76/461,748.60
  6. Step 6: Final answer
    x = 481,558.20

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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.