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Finding the Fourth Proportional to 671.48, 1,006.26 and 524.55

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Solution

The fourth proportional to 671.48, 1,006.26 and 524.55 is: 786.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.48 : 1,006.26 = 524.55 : x
  2. Step 2: Convert to fraction form
    671.48/1,006.26 = 524.55/x
  3. Step 3: Cross multiply
    671.48x = 1,006.26 × 524.55
  4. Step 4: Simplify right side
    671.48x = 527,838.44
  5. Step 5: Solve for x
    x = 527,838.44/671.48
  6. Step 6: Final answer
    x = 786.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.