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Finding the Fourth Proportional to 1,166.77, 1,750.20 and 436.27

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Solution

The fourth proportional to 1,166.77, 1,750.20 and 436.27 is: 654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.77 : 1,750.20 = 436.27 : x
  2. Step 2: Convert to fraction form
    1,166.77/1,750.20 = 436.27/x
  3. Step 3: Cross multiply
    1,166.77x = 1,750.20 × 436.27
  4. Step 4: Simplify right side
    1,166.77x = 763,559.75
  5. Step 5: Solve for x
    x = 763,559.75/1,166.77
  6. Step 6: Final answer
    x = 654.42

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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.