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Finding the Third Proportional to 317,729.25 and 698,429.25

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Solution

The third proportional to 317,729.25 and 698,429.25 is: 1,535,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,729.25 : 698,429.25 = 698,429.25 : x
  2. Step 2: Convert to fraction form
    317,729.25/698,429.25 = 698,429.25/x
  3. Step 3: Cross multiply
    317,729.25x = 698,429.25 × 698,429.25
  4. Step 4: Simplify right side
    317,729.25x = 487,803,417,255.56
  5. Step 5: Solve for x
    x = 487,803,417,255.56/317,729.25
  6. Step 6: Final answer
    x = 1,535,280.17

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.