Home / 782,490.36-1,173,785.58-221,568.60

Finding the Fourth Proportional to 782,490.36, 1,173,785.58 and 221,568.60

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Solution

The fourth proportional to 782,490.36, 1,173,785.58 and 221,568.60 is: 332,367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,490.36 : 1,173,785.58 = 221,568.60 : x
  2. Step 2: Convert to fraction form
    782,490.36/1,173,785.58 = 221,568.60/x
  3. Step 3: Cross multiply
    782,490.36x = 1,173,785.58 × 221,568.60
  4. Step 4: Simplify right side
    782,490.36x = 260,074,027,660.79
  5. Step 5: Solve for x
    x = 260,074,027,660.79/782,490.36
  6. Step 6: Final answer
    x = 332,367.07

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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.