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Finding the Third Proportional to 358,729.50 and 754,638

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Solution

The third proportional to 358,729.50 and 754,638 is: 1,587,487.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,729.50 : 754,638 = 754,638 : x
  2. Step 2: Convert to fraction form
    358,729.50/754,638 = 754,638/x
  3. Step 3: Cross multiply
    358,729.50x = 754,638 × 754,638
  4. Step 4: Simplify right side
    358,729.50x = 569,478,511,044
  5. Step 5: Solve for x
    x = 569,478,511,044/358,729.50
  6. Step 6: Final answer
    x = 1,587,487.26

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.