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Finding the Fourth Proportional to 1,114.46, 1,668.50 and 565.28

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Solution

The fourth proportional to 1,114.46, 1,668.50 and 565.28 is: 846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.46 : 1,668.50 = 565.28 : x
  2. Step 2: Convert to fraction form
    1,114.46/1,668.50 = 565.28/x
  3. Step 3: Cross multiply
    1,114.46x = 1,668.50 × 565.28
  4. Step 4: Simplify right side
    1,114.46x = 943,166.89
  5. Step 5: Solve for x
    x = 943,166.89/1,114.46
  6. Step 6: Final answer
    x = 846.30

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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.