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Finding the Fourth Proportional to 671.02, 925.90 and 474.19

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Solution

The fourth proportional to 671.02, 925.90 and 474.19 is: 654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.02 : 925.90 = 474.19 : x
  2. Step 2: Convert to fraction form
    671.02/925.90 = 474.19/x
  3. Step 3: Cross multiply
    671.02x = 925.90 × 474.19
  4. Step 4: Simplify right side
    671.02x = 439,049.02
  5. Step 5: Solve for x
    x = 439,049.02/671.02
  6. Step 6: Final answer
    x = 654.30

Related Problems

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Half scale
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Double scale
Find fourth proportional to 672.02, 927.28 and 475.19
Similar ratio
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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.