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Finding the Third Proportional to 889,940 and 1,909,480

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Solution

The third proportional to 889,940 and 1,909,480 is: 4,097,033.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,940 : 1,909,480 = 1,909,480 : x
  2. Step 2: Convert to fraction form
    889,940/1,909,480 = 1,909,480/x
  3. Step 3: Cross multiply
    889,940x = 1,909,480 × 1,909,480
  4. Step 4: Simplify right side
    889,940x = 3,646,113,870,400
  5. Step 5: Solve for x
    x = 3,646,113,870,400/889,940
  6. Step 6: Final answer
    x = 4,097,033.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.