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Finding the Fourth Proportional to 565.13, 779.95 and 471.72

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Solution

The fourth proportional to 565.13, 779.95 and 471.72 is: 651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.13 : 779.95 = 471.72 : x
  2. Step 2: Convert to fraction form
    565.13/779.95 = 471.72/x
  3. Step 3: Cross multiply
    565.13x = 779.95 × 471.72
  4. Step 4: Simplify right side
    565.13x = 367,922.86
  5. Step 5: Solve for x
    x = 367,922.86/565.13
  6. Step 6: Final answer
    x = 651.04

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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.