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Finding the Third Proportional to 278,987 and 607,795.75

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Solution

The third proportional to 278,987 and 607,795.75 is: 1,324,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,987 : 607,795.75 = 607,795.75 : x
  2. Step 2: Convert to fraction form
    278,987/607,795.75 = 607,795.75/x
  3. Step 3: Cross multiply
    278,987x = 607,795.75 × 607,795.75
  4. Step 4: Simplify right side
    278,987x = 369,415,673,718.06
  5. Step 5: Solve for x
    x = 369,415,673,718.06/278,987
  6. Step 6: Final answer
    x = 1,324,132.21

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.