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Finding the Third Proportional to 481,312.13 and 739,876.78

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Solution

The third proportional to 481,312.13 and 739,876.78 is: 1,137,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,312.13 : 739,876.78 = 739,876.78 : x
  2. Step 2: Convert to fraction form
    481,312.13/739,876.78 = 739,876.78/x
  3. Step 3: Cross multiply
    481,312.13x = 739,876.78 × 739,876.78
  4. Step 4: Simplify right side
    481,312.13x = 547,417,651,432.86
  5. Step 5: Solve for x
    x = 547,417,651,432.86/481,312.13
  6. Step 6: Final answer
    x = 1,137,344.40

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.