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Finding the Third Proportional to 979,644 and 2,122,768.50

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Solution

The third proportional to 979,644 and 2,122,768.50 is: 4,599,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,644 : 2,122,768.50 = 2,122,768.50 : x
  2. Step 2: Convert to fraction form
    979,644/2,122,768.50 = 2,122,768.50/x
  3. Step 3: Cross multiply
    979,644x = 2,122,768.50 × 2,122,768.50
  4. Step 4: Simplify right side
    979,644x = 4,506,146,104,592.25
  5. Step 5: Solve for x
    x = 4,506,146,104,592.25/979,644
  6. Step 6: Final answer
    x = 4,599,779.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.