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Finding the Third Proportional to 518,340 and 846,402

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Solution

The third proportional to 518,340 and 846,402 is: 1,382,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,340 : 846,402 = 846,402 : x
  2. Step 2: Convert to fraction form
    518,340/846,402 = 846,402/x
  3. Step 3: Cross multiply
    518,340x = 846,402 × 846,402
  4. Step 4: Simplify right side
    518,340x = 716,396,345,604
  5. Step 5: Solve for x
    x = 716,396,345,604/518,340
  6. Step 6: Final answer
    x = 1,382,097.36

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.