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Finding the Fourth Proportional to 1,182.68, 1,774.08 and 452.31

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Solution

The fourth proportional to 1,182.68, 1,774.08 and 452.31 is: 678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.68 : 1,774.08 = 452.31 : x
  2. Step 2: Convert to fraction form
    1,182.68/1,774.08 = 452.31/x
  3. Step 3: Cross multiply
    1,182.68x = 1,774.08 × 452.31
  4. Step 4: Simplify right side
    1,182.68x = 802,434.12
  5. Step 5: Solve for x
    x = 802,434.12/1,182.68
  6. Step 6: Final answer
    x = 678.49

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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.