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Finding the Third Proportional to 459.75 and 707.06

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Solution

The third proportional to 459.75 and 707.06 is: 1,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.75 : 707.06 = 707.06 : x
  2. Step 2: Convert to fraction form
    459.75/707.06 = 707.06/x
  3. Step 3: Cross multiply
    459.75x = 707.06 × 707.06
  4. Step 4: Simplify right side
    459.75x = 499,937.38
  5. Step 5: Solve for x
    x = 499,937.38/459.75
  6. Step 6: Final answer
    x = 1,087.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.