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Finding the Fourth Proportional to 664.61, 994.85 and 566.19

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Solution

The fourth proportional to 664.61, 994.85 and 566.19 is: 847.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    664.61 : 994.85 = 566.19 : x
  2. Step 2: Convert to fraction form
    664.61/994.85 = 566.19/x
  3. Step 3: Cross multiply
    664.61x = 994.85 × 566.19
  4. Step 4: Simplify right side
    664.61x = 563,278.02
  5. Step 5: Solve for x
    x = 563,278.02/664.61
  6. Step 6: Final answer
    x = 847.53

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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.