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Finding the Third Proportional to 876,792 and 1,287,532

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Solution

The third proportional to 876,792 and 1,287,532 is: 1,890,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,792 : 1,287,532 = 1,287,532 : x
  2. Step 2: Convert to fraction form
    876,792/1,287,532 = 1,287,532/x
  3. Step 3: Cross multiply
    876,792x = 1,287,532 × 1,287,532
  4. Step 4: Simplify right side
    876,792x = 1,657,738,651,024
  5. Step 5: Solve for x
    x = 1,657,738,651,024/876,792
  6. Step 6: Final answer
    x = 1,890,686.33

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.