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Finding the Fourth Proportional to 592.74, 888.66 and 318.78

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Solution

The fourth proportional to 592.74, 888.66 and 318.78 is: 477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.74 : 888.66 = 318.78 : x
  2. Step 2: Convert to fraction form
    592.74/888.66 = 318.78/x
  3. Step 3: Cross multiply
    592.74x = 888.66 × 318.78
  4. Step 4: Simplify right side
    592.74x = 283,287.03
  5. Step 5: Solve for x
    x = 283,287.03/592.74
  6. Step 6: Final answer
    x = 477.93

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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.