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Finding the Fourth Proportional to 575.64, 791.98 and 502.13

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Solution

The fourth proportional to 575.64, 791.98 and 502.13 is: 690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.64 : 791.98 = 502.13 : x
  2. Step 2: Convert to fraction form
    575.64/791.98 = 502.13/x
  3. Step 3: Cross multiply
    575.64x = 791.98 × 502.13
  4. Step 4: Simplify right side
    575.64x = 397,677.64
  5. Step 5: Solve for x
    x = 397,677.64/575.64
  6. Step 6: Final answer
    x = 690.84

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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.