Home / 763,785.70-1,145,843.82-290,480.02

Finding the Fourth Proportional to 763,785.70, 1,145,843.82 and 290,480.02

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Solution

The fourth proportional to 763,785.70, 1,145,843.82 and 290,480.02 is: 435,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,785.70 : 1,145,843.82 = 290,480.02 : x
  2. Step 2: Convert to fraction form
    763,785.70/1,145,843.82 = 290,480.02/x
  3. Step 3: Cross multiply
    763,785.70x = 1,145,843.82 × 290,480.02
  4. Step 4: Simplify right side
    763,785.70x = 332,844,735,750.48
  5. Step 5: Solve for x
    x = 332,844,735,750.48/763,785.70
  6. Step 6: Final answer
    x = 435,782.88

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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.