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Finding the Third Proportional to 409,998 and 900,712

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Solution

The third proportional to 409,998 and 900,712 is: 1,978,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,998 : 900,712 = 900,712 : x
  2. Step 2: Convert to fraction form
    409,998/900,712 = 900,712/x
  3. Step 3: Cross multiply
    409,998x = 900,712 × 900,712
  4. Step 4: Simplify right side
    409,998x = 811,282,106,944
  5. Step 5: Solve for x
    x = 811,282,106,944/409,998
  6. Step 6: Final answer
    x = 1,978,746.50

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.