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Finding the Fourth Proportional to 679.92, 937.44 and 562.38

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Solution

The fourth proportional to 679.92, 937.44 and 562.38 is: 775.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    679.92 : 937.44 = 562.38 : x
  2. Step 2: Convert to fraction form
    679.92/937.44 = 562.38/x
  3. Step 3: Cross multiply
    679.92x = 937.44 × 562.38
  4. Step 4: Simplify right side
    679.92x = 527,197.51
  5. Step 5: Solve for x
    x = 527,197.51/679.92
  6. Step 6: Final answer
    x = 775.38

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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.