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Finding the Fourth Proportional to 676.61, 934.16 and 606.55

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Solution

The fourth proportional to 676.61, 934.16 and 606.55 is: 837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.61 : 934.16 = 606.55 : x
  2. Step 2: Convert to fraction form
    676.61/934.16 = 606.55/x
  3. Step 3: Cross multiply
    676.61x = 934.16 × 606.55
  4. Step 4: Simplify right side
    676.61x = 566,614.75
  5. Step 5: Solve for x
    x = 566,614.75/676.61
  6. Step 6: Final answer
    x = 837.43

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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.