Home / 1,493,938.80-2,240,247.24-428,733.72

Finding the Fourth Proportional to 1,493,938.80, 2,240,247.24 and 428,733.72

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Solution

The fourth proportional to 1,493,938.80, 2,240,247.24 and 428,733.72 is: 642,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,938.80 : 2,240,247.24 = 428,733.72 : x
  2. Step 2: Convert to fraction form
    1,493,938.80/2,240,247.24 = 428,733.72/x
  3. Step 3: Cross multiply
    1,493,938.80x = 2,240,247.24 × 428,733.72
  4. Step 4: Simplify right side
    1,493,938.80x = 960,469,532,924.93
  5. Step 5: Solve for x
    x = 960,469,532,924.93/1,493,938.80
  6. Step 6: Final answer
    x = 642,910.90

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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.