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Finding the Fourth Proportional to 592.59, 890.46 and 318.88

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Solution

The fourth proportional to 592.59, 890.46 and 318.88 is: 479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.59 : 890.46 = 318.88 : x
  2. Step 2: Convert to fraction form
    592.59/890.46 = 318.88/x
  3. Step 3: Cross multiply
    592.59x = 890.46 × 318.88
  4. Step 4: Simplify right side
    592.59x = 283,947.66
  5. Step 5: Solve for x
    x = 283,947.66/592.59
  6. Step 6: Final answer
    x = 479.16

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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.