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Finding the Fourth Proportional to 597.56, 822.56 and 519.80

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Solution

The fourth proportional to 597.56, 822.56 and 519.80 is: 715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.56 : 822.56 = 519.80 : x
  2. Step 2: Convert to fraction form
    597.56/822.56 = 519.80/x
  3. Step 3: Cross multiply
    597.56x = 822.56 × 519.80
  4. Step 4: Simplify right side
    597.56x = 427,559.98
  5. Step 5: Solve for x
    x = 427,559.98/597.56
  6. Step 6: Final answer
    x = 715.52

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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.