Home / 2,409,852.78-3,612,257-811,863.72

Finding the Fourth Proportional to 2,409,852.78, 3,612,257 and 811,863.72

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Solution

The fourth proportional to 2,409,852.78, 3,612,257 and 811,863.72 is: 1,216,945.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409,852.78 : 3,612,257 = 811,863.72 : x
  2. Step 2: Convert to fraction form
    2,409,852.78/3,612,257 = 811,863.72/x
  3. Step 3: Cross multiply
    2,409,852.78x = 3,612,257 × 811,863.72
  4. Step 4: Simplify right side
    2,409,852.78x = 2,932,660,405,616.04
  5. Step 5: Solve for x
    x = 2,932,660,405,616.04/2,409,852.78
  6. Step 6: Final answer
    x = 1,216,945.88

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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.