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Finding the Fourth Proportional to 575.88, 865.08 and 559.68

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Solution

The fourth proportional to 575.88, 865.08 and 559.68 is: 840.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.88 : 865.08 = 559.68 : x
  2. Step 2: Convert to fraction form
    575.88/865.08 = 559.68/x
  3. Step 3: Cross multiply
    575.88x = 865.08 × 559.68
  4. Step 4: Simplify right side
    575.88x = 484,167.97
  5. Step 5: Solve for x
    x = 484,167.97/575.88
  6. Step 6: Final answer
    x = 840.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.