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Finding the Third Proportional to 279,604 and 608,360

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Solution

The third proportional to 279,604 and 608,360 is: 1,323,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,604 : 608,360 = 608,360 : x
  2. Step 2: Convert to fraction form
    279,604/608,360 = 608,360/x
  3. Step 3: Cross multiply
    279,604x = 608,360 × 608,360
  4. Step 4: Simplify right side
    279,604x = 370,101,889,600
  5. Step 5: Solve for x
    x = 370,101,889,600/279,604
  6. Step 6: Final answer
    x = 1,323,664.50

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.