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Finding the Fourth Proportional to 671.68, 922.99 and 547.07

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Solution

The fourth proportional to 671.68, 922.99 and 547.07 is: 751.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.68 : 922.99 = 547.07 : x
  2. Step 2: Convert to fraction form
    671.68/922.99 = 547.07/x
  3. Step 3: Cross multiply
    671.68x = 922.99 × 547.07
  4. Step 4: Simplify right side
    671.68x = 504,937.40
  5. Step 5: Solve for x
    x = 504,937.40/671.68
  6. Step 6: Final answer
    x = 751.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.