Home / 816,862.64-1,225,410.59-255,940.88

Finding the Fourth Proportional to 816,862.64, 1,225,410.59 and 255,940.88

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Solution

The fourth proportional to 816,862.64, 1,225,410.59 and 255,940.88 is: 383,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,862.64 : 1,225,410.59 = 255,940.88 : x
  2. Step 2: Convert to fraction form
    816,862.64/1,225,410.59 = 255,940.88/x
  3. Step 3: Cross multiply
    816,862.64x = 1,225,410.59 × 255,940.88
  4. Step 4: Simplify right side
    816,862.64x = 313,632,659,278.72
  5. Step 5: Solve for x
    x = 313,632,659,278.72/816,862.64
  6. Step 6: Final answer
    x = 383,947.86

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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.