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Finding the Fourth Proportional to 1,025.17, 1,414.80 and 577.12

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Solution

The fourth proportional to 1,025.17, 1,414.80 and 577.12 is: 796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.17 : 1,414.80 = 577.12 : x
  2. Step 2: Convert to fraction form
    1,025.17/1,414.80 = 577.12/x
  3. Step 3: Cross multiply
    1,025.17x = 1,414.80 × 577.12
  4. Step 4: Simplify right side
    1,025.17x = 816,509.38
  5. Step 5: Solve for x
    x = 816,509.38/1,025.17
  6. Step 6: Final answer
    x = 796.46

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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.