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Finding the Fourth Proportional to 889,171, 1,227,056.04 and 486,763

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Solution

The fourth proportional to 889,171, 1,227,056.04 and 486,763 is: 671,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,171 : 1,227,056.04 = 486,763 : x
  2. Step 2: Convert to fraction form
    889,171/1,227,056.04 = 486,763/x
  3. Step 3: Cross multiply
    889,171x = 1,227,056.04 × 486,763
  4. Step 4: Simplify right side
    889,171x = 597,285,479,198.52
  5. Step 5: Solve for x
    x = 597,285,479,198.52/889,171
  6. Step 6: Final answer
    x = 671,732.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.