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Finding the Third Proportional to 931,120 and 1,487,689

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Solution

The third proportional to 931,120 and 1,487,689 is: 2,376,942.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,120 : 1,487,689 = 1,487,689 : x
  2. Step 2: Convert to fraction form
    931,120/1,487,689 = 1,487,689/x
  3. Step 3: Cross multiply
    931,120x = 1,487,689 × 1,487,689
  4. Step 4: Simplify right side
    931,120x = 2,213,218,560,721
  5. Step 5: Solve for x
    x = 2,213,218,560,721/931,120
  6. Step 6: Final answer
    x = 2,376,942.35

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.