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Finding the Fourth Proportional to 552,369.20, 762,180.92 and 310,651.02

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Solution

The fourth proportional to 552,369.20, 762,180.92 and 310,651.02 is: 428,648.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,369.20 : 762,180.92 = 310,651.02 : x
  2. Step 2: Convert to fraction form
    552,369.20/762,180.92 = 310,651.02/x
  3. Step 3: Cross multiply
    552,369.20x = 762,180.92 × 310,651.02
  4. Step 4: Simplify right side
    552,369.20x = 236,772,280,222.54
  5. Step 5: Solve for x
    x = 236,772,280,222.54/552,369.20
  6. Step 6: Final answer
    x = 428,648.59

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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.