Home / 420,634.39-580,542.11-267,512.94

Finding the Fourth Proportional to 420,634.39, 580,542.11 and 267,512.94

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Solution

The fourth proportional to 420,634.39, 580,542.11 and 267,512.94 is: 369,210.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,634.39 : 580,542.11 = 267,512.94 : x
  2. Step 2: Convert to fraction form
    420,634.39/580,542.11 = 267,512.94/x
  3. Step 3: Cross multiply
    420,634.39x = 580,542.11 × 267,512.94
  4. Step 4: Simplify right side
    420,634.39x = 155,302,526,639.90
  5. Step 5: Solve for x
    x = 155,302,526,639.90/420,634.39
  6. Step 6: Final answer
    x = 369,210.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.