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Finding the Fourth Proportional to 676.76, 934.08 and 560.12

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Solution

The fourth proportional to 676.76, 934.08 and 560.12 is: 773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.76 : 934.08 = 560.12 : x
  2. Step 2: Convert to fraction form
    676.76/934.08 = 560.12/x
  3. Step 3: Cross multiply
    676.76x = 934.08 × 560.12
  4. Step 4: Simplify right side
    676.76x = 523,196.89
  5. Step 5: Solve for x
    x = 523,196.89/676.76
  6. Step 6: Final answer
    x = 773.09

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Half scale
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Double scale
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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.