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Finding the Fourth Proportional to 632.86, 943.81 and 579.70

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Solution

The fourth proportional to 632.86, 943.81 and 579.70 is: 864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.86 : 943.81 = 579.70 : x
  2. Step 2: Convert to fraction form
    632.86/943.81 = 579.70/x
  3. Step 3: Cross multiply
    632.86x = 943.81 × 579.70
  4. Step 4: Simplify right side
    632.86x = 547,122.85
  5. Step 5: Solve for x
    x = 547,122.85/632.86
  6. Step 6: Final answer
    x = 864.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.