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Finding the Fourth Proportional to 552,468.98, 762,411.22 and 310,749.60

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Solution

The fourth proportional to 552,468.98, 762,411.22 and 310,749.60 is: 428,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,468.98 : 762,411.22 = 310,749.60 : x
  2. Step 2: Convert to fraction form
    552,468.98/762,411.22 = 310,749.60/x
  3. Step 3: Cross multiply
    552,468.98x = 762,411.22 × 310,749.60
  4. Step 4: Simplify right side
    552,468.98x = 236,918,981,650.51
  5. Step 5: Solve for x
    x = 236,918,981,650.51/552,468.98
  6. Step 6: Final answer
    x = 428,836.71

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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.