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Finding the Third Proportional to 409,896 and 889,776

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Solution

The third proportional to 409,896 and 889,776 is: 1,931,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,896 : 889,776 = 889,776 : x
  2. Step 2: Convert to fraction form
    409,896/889,776 = 889,776/x
  3. Step 3: Cross multiply
    409,896x = 889,776 × 889,776
  4. Step 4: Simplify right side
    409,896x = 791,701,330,176
  5. Step 5: Solve for x
    x = 791,701,330,176/409,896
  6. Step 6: Final answer
    x = 1,931,468.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.