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Finding the Fourth Proportional to 2,579,772.62, 3,869,740.34 and 660,695.92

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Solution

The fourth proportional to 2,579,772.62, 3,869,740.34 and 660,695.92 is: 991,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,772.62 : 3,869,740.34 = 660,695.92 : x
  2. Step 2: Convert to fraction form
    2,579,772.62/3,869,740.34 = 660,695.92/x
  3. Step 3: Cross multiply
    2,579,772.62x = 3,869,740.34 × 660,695.92
  4. Step 4: Simplify right side
    2,579,772.62x = 2,556,721,654,097.41
  5. Step 5: Solve for x
    x = 2,556,721,654,097.41/2,579,772.62
  6. Step 6: Final answer
    x = 991,064.73

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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.