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Finding the Third Proportional to 724.73 and 1,590.42

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Solution

The third proportional to 724.73 and 1,590.42 is: 3,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.73 : 1,590.42 = 1,590.42 : x
  2. Step 2: Convert to fraction form
    724.73/1,590.42 = 1,590.42/x
  3. Step 3: Cross multiply
    724.73x = 1,590.42 × 1,590.42
  4. Step 4: Simplify right side
    724.73x = 2,529,423.10
  5. Step 5: Solve for x
    x = 2,529,423.10/724.73
  6. Step 6: Final answer
    x = 3,490.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.