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Finding the Third Proportional to 855,660 and 1,315,325.25

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Solution

The third proportional to 855,660 and 1,315,325.25 is: 2,021,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,660 : 1,315,325.25 = 1,315,325.25 : x
  2. Step 2: Convert to fraction form
    855,660/1,315,325.25 = 1,315,325.25/x
  3. Step 3: Cross multiply
    855,660x = 1,315,325.25 × 1,315,325.25
  4. Step 4: Simplify right side
    855,660x = 1,730,080,513,287.56
  5. Step 5: Solve for x
    x = 1,730,080,513,287.56/855,660
  6. Step 6: Final answer
    x = 2,021,925.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.