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Finding the Third Proportional to 340,218 and 732,438

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Solution

The third proportional to 340,218 and 732,438 is: 1,576,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,218 : 732,438 = 732,438 : x
  2. Step 2: Convert to fraction form
    340,218/732,438 = 732,438/x
  3. Step 3: Cross multiply
    340,218x = 732,438 × 732,438
  4. Step 4: Simplify right side
    340,218x = 536,465,423,844
  5. Step 5: Solve for x
    x = 536,465,423,844/340,218
  6. Step 6: Final answer
    x = 1,576,828.46

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.