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Finding the Fourth Proportional to 671.98, 926.97 and 625.06

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Solution

The fourth proportional to 671.98, 926.97 and 625.06 is: 862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.98 : 926.97 = 625.06 : x
  2. Step 2: Convert to fraction form
    671.98/926.97 = 625.06/x
  3. Step 3: Cross multiply
    671.98x = 926.97 × 625.06
  4. Step 4: Simplify right side
    671.98x = 579,411.87
  5. Step 5: Solve for x
    x = 579,411.87/671.98
  6. Step 6: Final answer
    x = 862.25

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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.