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Finding the Fourth Proportional to 573.21, 794.19 and 560.91

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Solution

The fourth proportional to 573.21, 794.19 and 560.91 is: 777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.21 : 794.19 = 560.91 : x
  2. Step 2: Convert to fraction form
    573.21/794.19 = 560.91/x
  3. Step 3: Cross multiply
    573.21x = 794.19 × 560.91
  4. Step 4: Simplify right side
    573.21x = 445,469.11
  5. Step 5: Solve for x
    x = 445,469.11/573.21
  6. Step 6: Final answer
    x = 777.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.