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Finding the Third Proportional to 387,762 and 579,327.75

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Solution

The third proportional to 387,762 and 579,327.75 is: 865,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,762 : 579,327.75 = 579,327.75 : x
  2. Step 2: Convert to fraction form
    387,762/579,327.75 = 579,327.75/x
  3. Step 3: Cross multiply
    387,762x = 579,327.75 × 579,327.75
  4. Step 4: Simplify right side
    387,762x = 335,620,641,920.06
  5. Step 5: Solve for x
    x = 335,620,641,920.06/387,762
  6. Step 6: Final answer
    x = 865,532.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.