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Finding the Third Proportional to 987,681 and 1,341,489

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Solution

The third proportional to 987,681 and 1,341,489 is: 1,822,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,681 : 1,341,489 = 1,341,489 : x
  2. Step 2: Convert to fraction form
    987,681/1,341,489 = 1,341,489/x
  3. Step 3: Cross multiply
    987,681x = 1,341,489 × 1,341,489
  4. Step 4: Simplify right side
    987,681x = 1,799,592,737,121
  5. Step 5: Solve for x
    x = 1,799,592,737,121/987,681
  6. Step 6: Final answer
    x = 1,822,038.43

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.