Home / 658,941.17-988,137.96-321,883.97

Finding the Fourth Proportional to 658,941.17, 988,137.96 and 321,883.97

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Solution

The fourth proportional to 658,941.17, 988,137.96 and 321,883.97 is: 482,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,941.17 : 988,137.96 = 321,883.97 : x
  2. Step 2: Convert to fraction form
    658,941.17/988,137.96 = 321,883.97/x
  3. Step 3: Cross multiply
    658,941.17x = 988,137.96 × 321,883.97
  4. Step 4: Simplify right side
    658,941.17x = 318,065,764,531.81
  5. Step 5: Solve for x
    x = 318,065,764,531.81/658,941.17
  6. Step 6: Final answer
    x = 482,692.21

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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.