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Finding the Third Proportional to 555,792 and 861,148

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Solution

The third proportional to 555,792 and 861,148 is: 1,334,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,792 : 861,148 = 861,148 : x
  2. Step 2: Convert to fraction form
    555,792/861,148 = 861,148/x
  3. Step 3: Cross multiply
    555,792x = 861,148 × 861,148
  4. Step 4: Simplify right side
    555,792x = 741,575,877,904
  5. Step 5: Solve for x
    x = 741,575,877,904/555,792
  6. Step 6: Final answer
    x = 1,334,268.72

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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.