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Finding the Fourth Proportional to 1,025.06, 1,414.60 and 559.32

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Solution

The fourth proportional to 1,025.06, 1,414.60 and 559.32 is: 771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.06 : 1,414.60 = 559.32 : x
  2. Step 2: Convert to fraction form
    1,025.06/1,414.60 = 559.32/x
  3. Step 3: Cross multiply
    1,025.06x = 1,414.60 × 559.32
  4. Step 4: Simplify right side
    1,025.06x = 791,214.07
  5. Step 5: Solve for x
    x = 791,214.07/1,025.06
  6. Step 6: Final answer
    x = 771.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.