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Finding the Fourth Proportional to 1,167.56, 1,750.78 and 437.12

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Solution

The fourth proportional to 1,167.56, 1,750.78 and 437.12 is: 655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.56 : 1,750.78 = 437.12 : x
  2. Step 2: Convert to fraction form
    1,167.56/1,750.78 = 437.12/x
  3. Step 3: Cross multiply
    1,167.56x = 1,750.78 × 437.12
  4. Step 4: Simplify right side
    1,167.56x = 765,300.95
  5. Step 5: Solve for x
    x = 765,300.95/1,167.56
  6. Step 6: Final answer
    x = 655.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.