Home / 2,585,651.13-3,878,476.70-1,322,789.85

Finding the Fourth Proportional to 2,585,651.13, 3,878,476.70 and 1,322,789.85

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Solution

The fourth proportional to 2,585,651.13, 3,878,476.70 and 1,322,789.85 is: 1,984,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585,651.13 : 3,878,476.70 = 1,322,789.85 : x
  2. Step 2: Convert to fraction form
    2,585,651.13/3,878,476.70 = 1,322,789.85/x
  3. Step 3: Cross multiply
    2,585,651.13x = 3,878,476.70 × 1,322,789.85
  4. Step 4: Simplify right side
    2,585,651.13x = 5,130,409,605,607.55
  5. Step 5: Solve for x
    x = 5,130,409,605,607.55/2,585,651.13
  6. Step 6: Final answer
    x = 1,984,184.78

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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.