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Finding the Third Proportional to 338,487.19 and 720,835.88

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Solution

The third proportional to 338,487.19 and 720,835.88 is: 1,535,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,487.19 : 720,835.88 = 720,835.88 : x
  2. Step 2: Convert to fraction form
    338,487.19/720,835.88 = 720,835.88/x
  3. Step 3: Cross multiply
    338,487.19x = 720,835.88 × 720,835.88
  4. Step 4: Simplify right side
    338,487.19x = 519,604,358,687.02
  5. Step 5: Solve for x
    x = 519,604,358,687.02/338,487.19
  6. Step 6: Final answer
    x = 1,535,078.37

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.