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Finding the Third Proportional to 891,026 and 1,287,379

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Solution

The third proportional to 891,026 and 1,287,379 is: 1,860,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,026 : 1,287,379 = 1,287,379 : x
  2. Step 2: Convert to fraction form
    891,026/1,287,379 = 1,287,379/x
  3. Step 3: Cross multiply
    891,026x = 1,287,379 × 1,287,379
  4. Step 4: Simplify right side
    891,026x = 1,657,344,689,641
  5. Step 5: Solve for x
    x = 1,657,344,689,641/891,026
  6. Step 6: Final answer
    x = 1,860,040.77

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.