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Finding the Fourth Proportional to 710.44, 1,066.68 and 452.07

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Solution

The fourth proportional to 710.44, 1,066.68 and 452.07 is: 678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.44 : 1,066.68 = 452.07 : x
  2. Step 2: Convert to fraction form
    710.44/1,066.68 = 452.07/x
  3. Step 3: Cross multiply
    710.44x = 1,066.68 × 452.07
  4. Step 4: Simplify right side
    710.44x = 482,214.03
  5. Step 5: Solve for x
    x = 482,214.03/710.44
  6. Step 6: Final answer
    x = 678.76

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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.