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Finding the Fourth Proportional to 906.47, 1,250.92 and 533.45

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Solution

The fourth proportional to 906.47, 1,250.92 and 533.45 is: 736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    906.47 : 1,250.92 = 533.45 : x
  2. Step 2: Convert to fraction form
    906.47/1,250.92 = 533.45/x
  3. Step 3: Cross multiply
    906.47x = 1,250.92 × 533.45
  4. Step 4: Simplify right side
    906.47x = 667,294.35
  5. Step 5: Solve for x
    x = 667,294.35/906.47
  6. Step 6: Final answer
    x = 736.15

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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.