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Finding the Fourth Proportional to 1,175.01, 1,621.45 and 677.66

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Solution

The fourth proportional to 1,175.01, 1,621.45 and 677.66 is: 935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.01 : 1,621.45 = 677.66 : x
  2. Step 2: Convert to fraction form
    1,175.01/1,621.45 = 677.66/x
  3. Step 3: Cross multiply
    1,175.01x = 1,621.45 × 677.66
  4. Step 4: Simplify right side
    1,175.01x = 1,098,784.55
  5. Step 5: Solve for x
    x = 1,098,784.55/1,175.01
  6. Step 6: Final answer
    x = 935.13

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