Home / 1,493,305.28-2,240,070.24-428,338.88

Finding the Fourth Proportional to 1,493,305.28, 2,240,070.24 and 428,338.88

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Solution

The fourth proportional to 1,493,305.28, 2,240,070.24 and 428,338.88 is: 642,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,305.28 : 2,240,070.24 = 428,338.88 : x
  2. Step 2: Convert to fraction form
    1,493,305.28/2,240,070.24 = 428,338.88/x
  3. Step 3: Cross multiply
    1,493,305.28x = 2,240,070.24 × 428,338.88
  4. Step 4: Simplify right side
    1,493,305.28x = 959,509,177,722.93
  5. Step 5: Solve for x
    x = 959,509,177,722.93/1,493,305.28
  6. Step 6: Final answer
    x = 642,540.54

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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.