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Finding the Third Proportional to 555,769.50 and 861,111.75

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Solution

The third proportional to 555,769.50 and 861,111.75 is: 1,334,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,769.50 : 861,111.75 = 861,111.75 : x
  2. Step 2: Convert to fraction form
    555,769.50/861,111.75 = 861,111.75/x
  3. Step 3: Cross multiply
    555,769.50x = 861,111.75 × 861,111.75
  4. Step 4: Simplify right side
    555,769.50x = 741,513,445,988.06
  5. Step 5: Solve for x
    x = 741,513,445,988.06/555,769.50
  6. Step 6: Final answer
    x = 1,334,210.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.