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Finding the Third Proportional to 330,987 and 714,447

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Solution

The third proportional to 330,987 and 714,447 is: 1,542,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,987 : 714,447 = 714,447 : x
  2. Step 2: Convert to fraction form
    330,987/714,447 = 714,447/x
  3. Step 3: Cross multiply
    330,987x = 714,447 × 714,447
  4. Step 4: Simplify right side
    330,987x = 510,434,515,809
  5. Step 5: Solve for x
    x = 510,434,515,809/330,987
  6. Step 6: Final answer
    x = 1,542,158.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.