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Finding the Third Proportional to 1,538,889 and 2,640,475.50

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Solution

The third proportional to 1,538,889 and 2,640,475.50 is: 4,530,613.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,889 : 2,640,475.50 = 2,640,475.50 : x
  2. Step 2: Convert to fraction form
    1,538,889/2,640,475.50 = 2,640,475.50/x
  3. Step 3: Cross multiply
    1,538,889x = 2,640,475.50 × 2,640,475.50
  4. Step 4: Simplify right side
    1,538,889x = 6,972,110,866,100.25
  5. Step 5: Solve for x
    x = 6,972,110,866,100.25/1,538,889
  6. Step 6: Final answer
    x = 4,530,613.23

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.