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Finding the Third Proportional to 278,871.75 and 602,020.50

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Solution

The third proportional to 278,871.75 and 602,020.50 is: 1,299,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,871.75 : 602,020.50 = 602,020.50 : x
  2. Step 2: Convert to fraction form
    278,871.75/602,020.50 = 602,020.50/x
  3. Step 3: Cross multiply
    278,871.75x = 602,020.50 × 602,020.50
  4. Step 4: Simplify right side
    278,871.75x = 362,428,682,420.25
  5. Step 5: Solve for x
    x = 362,428,682,420.25/278,871.75
  6. Step 6: Final answer
    x = 1,299,624.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.