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Finding the Fourth Proportional to 1,166,446.88, 1,749,670.34 and 279,982.88

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Solution

The fourth proportional to 1,166,446.88, 1,749,670.34 and 279,982.88 is: 419,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,446.88 : 1,749,670.34 = 279,982.88 : x
  2. Step 2: Convert to fraction form
    1,166,446.88/1,749,670.34 = 279,982.88/x
  3. Step 3: Cross multiply
    1,166,446.88x = 1,749,670.34 × 279,982.88
  4. Step 4: Simplify right side
    1,166,446.88x = 489,877,730,695.51
  5. Step 5: Solve for x
    x = 489,877,730,695.51/1,166,446.88
  6. Step 6: Final answer
    x = 419,974.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.