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Finding the Fourth Proportional to 399,689.48, 599,949.48 and 267,493.52

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Solution

The fourth proportional to 399,689.48, 599,949.48 and 267,493.52 is: 401,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,689.48 : 599,949.48 = 267,493.52 : x
  2. Step 2: Convert to fraction form
    399,689.48/599,949.48 = 267,493.52/x
  3. Step 3: Cross multiply
    399,689.48x = 599,949.48 × 267,493.52
  4. Step 4: Simplify right side
    399,689.48x = 160,482,598,227.37
  5. Step 5: Solve for x
    x = 160,482,598,227.37/399,689.48
  6. Step 6: Final answer
    x = 401,518.19

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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.