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Finding the Fourth Proportional to 1,120.55, 1,677.23 and 599.25

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Solution

The fourth proportional to 1,120.55, 1,677.23 and 599.25 is: 896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120.55 : 1,677.23 = 599.25 : x
  2. Step 2: Convert to fraction form
    1,120.55/1,677.23 = 599.25/x
  3. Step 3: Cross multiply
    1,120.55x = 1,677.23 × 599.25
  4. Step 4: Simplify right side
    1,120.55x = 1,005,077.08
  5. Step 5: Solve for x
    x = 1,005,077.08/1,120.55
  6. Step 6: Final answer
    x = 896.95

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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.