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Finding the Third Proportional to 387,899.25 and 605,423.25

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Solution

The third proportional to 387,899.25 and 605,423.25 is: 944,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,899.25 : 605,423.25 = 605,423.25 : x
  2. Step 2: Convert to fraction form
    387,899.25/605,423.25 = 605,423.25/x
  3. Step 3: Cross multiply
    387,899.25x = 605,423.25 × 605,423.25
  4. Step 4: Simplify right side
    387,899.25x = 366,537,311,640.56
  5. Step 5: Solve for x
    x = 366,537,311,640.56/387,899.25
  6. Step 6: Final answer
    x = 944,929.16

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.