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Finding the Third Proportional to 646,803 and 1,360,632

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Solution

The third proportional to 646,803 and 1,360,632 is: 2,862,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,803 : 1,360,632 = 1,360,632 : x
  2. Step 2: Convert to fraction form
    646,803/1,360,632 = 1,360,632/x
  3. Step 3: Cross multiply
    646,803x = 1,360,632 × 1,360,632
  4. Step 4: Simplify right side
    646,803x = 1,851,319,439,424
  5. Step 5: Solve for x
    x = 1,851,319,439,424/646,803
  6. Step 6: Final answer
    x = 2,862,261.68

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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.