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Finding the Third Proportional to 710.50 and 1,042.25

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Solution

The third proportional to 710.50 and 1,042.25 is: 1,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.50 : 1,042.25 = 1,042.25 : x
  2. Step 2: Convert to fraction form
    710.50/1,042.25 = 1,042.25/x
  3. Step 3: Cross multiply
    710.50x = 1,042.25 × 1,042.25
  4. Step 4: Simplify right side
    710.50x = 1,086,285.06
  5. Step 5: Solve for x
    x = 1,086,285.06/710.50
  6. Step 6: Final answer
    x = 1,528.90

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.