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Finding the Third Proportional to 646,809 and 979,234.50

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Solution

The third proportional to 646,809 and 979,234.50 is: 1,482,509.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,809 : 979,234.50 = 979,234.50 : x
  2. Step 2: Convert to fraction form
    646,809/979,234.50 = 979,234.50/x
  3. Step 3: Cross multiply
    646,809x = 979,234.50 × 979,234.50
  4. Step 4: Simplify right side
    646,809x = 958,900,205,990.25
  5. Step 5: Solve for x
    x = 958,900,205,990.25/646,809
  6. Step 6: Final answer
    x = 1,482,509.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.