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Finding the Fourth Proportional to 1,044.33, 1,566.62 and 313.80

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Solution

The fourth proportional to 1,044.33, 1,566.62 and 313.80 is: 470.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.33 : 1,566.62 = 313.80 : x
  2. Step 2: Convert to fraction form
    1,044.33/1,566.62 = 313.80/x
  3. Step 3: Cross multiply
    1,044.33x = 1,566.62 × 313.80
  4. Step 4: Simplify right side
    1,044.33x = 491,605.36
  5. Step 5: Solve for x
    x = 491,605.36/1,044.33
  6. Step 6: Final answer
    x = 470.74

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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.