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Finding the Fourth Proportional to 1,108.59, 1,663.99 and 588.47

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Solution

The fourth proportional to 1,108.59, 1,663.99 and 588.47 is: 883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.59 : 1,663.99 = 588.47 : x
  2. Step 2: Convert to fraction form
    1,108.59/1,663.99 = 588.47/x
  3. Step 3: Cross multiply
    1,108.59x = 1,663.99 × 588.47
  4. Step 4: Simplify right side
    1,108.59x = 979,201.71
  5. Step 5: Solve for x
    x = 979,201.71/1,108.59
  6. Step 6: Final answer
    x = 883.29

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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.