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Finding the Third Proportional to 688,662 and 1,487,980.13

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Solution

The third proportional to 688,662 and 1,487,980.13 is: 3,215,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,662 : 1,487,980.13 = 1,487,980.13 : x
  2. Step 2: Convert to fraction form
    688,662/1,487,980.13 = 1,487,980.13/x
  3. Step 3: Cross multiply
    688,662x = 1,487,980.13 × 1,487,980.13
  4. Step 4: Simplify right side
    688,662x = 2,214,084,852,395.02
  5. Step 5: Solve for x
    x = 2,214,084,852,395.02/688,662
  6. Step 6: Final answer
    x = 3,215,053.03

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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.