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Finding the Third Proportional to 331,294 and 715,040

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Solution

The third proportional to 331,294 and 715,040 is: 1,543,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,294 : 715,040 = 715,040 : x
  2. Step 2: Convert to fraction form
    331,294/715,040 = 715,040/x
  3. Step 3: Cross multiply
    331,294x = 715,040 × 715,040
  4. Step 4: Simplify right side
    331,294x = 511,282,201,600
  5. Step 5: Solve for x
    x = 511,282,201,600/331,294
  6. Step 6: Final answer
    x = 1,543,288.44

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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.