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Finding the Fourth Proportional to 579.80, 793.02 and 571.16

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Solution

The fourth proportional to 579.80, 793.02 and 571.16 is: 781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.80 : 793.02 = 571.16 : x
  2. Step 2: Convert to fraction form
    579.80/793.02 = 571.16/x
  3. Step 3: Cross multiply
    579.80x = 793.02 × 571.16
  4. Step 4: Simplify right side
    579.80x = 452,941.30
  5. Step 5: Solve for x
    x = 452,941.30/579.80
  6. Step 6: Final answer
    x = 781.20

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.