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Finding the Fourth Proportional to 671.63, 928.05 and 525.37

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Solution

The fourth proportional to 671.63, 928.05 and 525.37 is: 725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.63 : 928.05 = 525.37 : x
  2. Step 2: Convert to fraction form
    671.63/928.05 = 525.37/x
  3. Step 3: Cross multiply
    671.63x = 928.05 × 525.37
  4. Step 4: Simplify right side
    671.63x = 487,573.58
  5. Step 5: Solve for x
    x = 487,573.58/671.63
  6. Step 6: Final answer
    x = 725.96

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1.5x scale

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.