Home / 3,172,615.79-4,378,215.20-1,814,488.79

Finding the Fourth Proportional to 3,172,615.79, 4,378,215.20 and 1,814,488.79

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Solution

The fourth proportional to 3,172,615.79, 4,378,215.20 and 1,814,488.79 is: 2,503,997.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,615.79 : 4,378,215.20 = 1,814,488.79 : x
  2. Step 2: Convert to fraction form
    3,172,615.79/4,378,215.20 = 1,814,488.79/x
  3. Step 3: Cross multiply
    3,172,615.79x = 4,378,215.20 × 1,814,488.79
  4. Step 4: Simplify right side
    3,172,615.79x = 7,944,222,369,644.09
  5. Step 5: Solve for x
    x = 7,944,222,369,644.09/3,172,615.79
  6. Step 6: Final answer
    x = 2,503,997.62

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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.