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Finding the Fourth Proportional to 2,654,977.23, 3,982,488.86 and 857,860.88

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Solution

The fourth proportional to 2,654,977.23, 3,982,488.86 and 857,860.88 is: 1,286,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654,977.23 : 3,982,488.86 = 857,860.88 : x
  2. Step 2: Convert to fraction form
    2,654,977.23/3,982,488.86 = 857,860.88/x
  3. Step 3: Cross multiply
    2,654,977.23x = 3,982,488.86 × 857,860.88
  4. Step 4: Simplify right side
    2,654,977.23x = 3,416,421,380,262.00
  5. Step 5: Solve for x
    x = 3,416,421,380,262.00/2,654,977.23
  6. Step 6: Final answer
    x = 1,286,798.75

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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.