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Finding the Third Proportional to 931,569 and 1,318,438

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Solution

The third proportional to 931,569 and 1,318,438 is: 1,865,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,569 : 1,318,438 = 1,318,438 : x
  2. Step 2: Convert to fraction form
    931,569/1,318,438 = 1,318,438/x
  3. Step 3: Cross multiply
    931,569x = 1,318,438 × 1,318,438
  4. Step 4: Simplify right side
    931,569x = 1,738,278,759,844
  5. Step 5: Solve for x
    x = 1,738,278,759,844/931,569
  6. Step 6: Final answer
    x = 1,865,968.88

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.