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Finding the Third Proportional to 646,798 and 1,360,620

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Solution

The third proportional to 646,798 and 1,360,620 is: 2,862,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,798 : 1,360,620 = 1,360,620 : x
  2. Step 2: Convert to fraction form
    646,798/1,360,620 = 1,360,620/x
  3. Step 3: Cross multiply
    646,798x = 1,360,620 × 1,360,620
  4. Step 4: Simplify right side
    646,798x = 1,851,286,784,400
  5. Step 5: Solve for x
    x = 1,851,286,784,400/646,798
  6. Step 6: Final answer
    x = 2,862,233.32

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.