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Finding the Third Proportional to 918,320 and 1,999,282

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Solution

The third proportional to 918,320 and 1,999,282 is: 4,352,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,320 : 1,999,282 = 1,999,282 : x
  2. Step 2: Convert to fraction form
    918,320/1,999,282 = 1,999,282/x
  3. Step 3: Cross multiply
    918,320x = 1,999,282 × 1,999,282
  4. Step 4: Simplify right side
    918,320x = 3,997,128,515,524
  5. Step 5: Solve for x
    x = 3,997,128,515,524/918,320
  6. Step 6: Final answer
    x = 4,352,653.23

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.