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Finding the Third Proportional to 636,589.50 and 920,619

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Solution

The third proportional to 636,589.50 and 920,619 is: 1,331,375.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,589.50 : 920,619 = 920,619 : x
  2. Step 2: Convert to fraction form
    636,589.50/920,619 = 920,619/x
  3. Step 3: Cross multiply
    636,589.50x = 920,619 × 920,619
  4. Step 4: Simplify right side
    636,589.50x = 847,539,343,161
  5. Step 5: Solve for x
    x = 847,539,343,161/636,589.50
  6. Step 6: Final answer
    x = 1,331,375.00

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.