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Finding the Third Proportional to 587,943 and 1,287,990.75

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Solution

The third proportional to 587,943 and 1,287,990.75 is: 2,821,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,943 : 1,287,990.75 = 1,287,990.75 : x
  2. Step 2: Convert to fraction form
    587,943/1,287,990.75 = 1,287,990.75/x
  3. Step 3: Cross multiply
    587,943x = 1,287,990.75 × 1,287,990.75
  4. Step 4: Simplify right side
    587,943x = 1,658,920,172,085.56
  5. Step 5: Solve for x
    x = 1,658,920,172,085.56/587,943
  6. Step 6: Final answer
    x = 2,821,566.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.