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Finding the Fourth Proportional to 671.22, 924.39 and 656.85

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Solution

The fourth proportional to 671.22, 924.39 and 656.85 is: 904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.22 : 924.39 = 656.85 : x
  2. Step 2: Convert to fraction form
    671.22/924.39 = 656.85/x
  3. Step 3: Cross multiply
    671.22x = 924.39 × 656.85
  4. Step 4: Simplify right side
    671.22x = 607,185.57
  5. Step 5: Solve for x
    x = 607,185.57/671.22
  6. Step 6: Final answer
    x = 904.60

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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.