Home / 312,449.17-465,930.19-309,607.44

Finding the Fourth Proportional to 312,449.17, 465,930.19 and 309,607.44

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Solution

The fourth proportional to 312,449.17, 465,930.19 and 309,607.44 is: 461,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,449.17 : 465,930.19 = 309,607.44 : x
  2. Step 2: Convert to fraction form
    312,449.17/465,930.19 = 309,607.44/x
  3. Step 3: Cross multiply
    312,449.17x = 465,930.19 × 309,607.44
  4. Step 4: Simplify right side
    312,449.17x = 144,255,453,344.61
  5. Step 5: Solve for x
    x = 144,255,453,344.61/312,449.17
  6. Step 6: Final answer
    x = 461,692.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.