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Finding the Third Proportional to 282,424 and 414,988

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Solution

The third proportional to 282,424 and 414,988 is: 609,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,424 : 414,988 = 414,988 : x
  2. Step 2: Convert to fraction form
    282,424/414,988 = 414,988/x
  3. Step 3: Cross multiply
    282,424x = 414,988 × 414,988
  4. Step 4: Simplify right side
    282,424x = 172,215,040,144
  5. Step 5: Solve for x
    x = 172,215,040,144/282,424
  6. Step 6: Final answer
    x = 609,774.81

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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.