Home / 1,102,893.21-1,653,631.77-428,255.65

Finding the Fourth Proportional to 1,102,893.21, 1,653,631.77 and 428,255.65

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Solution

The fourth proportional to 1,102,893.21, 1,653,631.77 and 428,255.65 is: 642,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,893.21 : 1,653,631.77 = 428,255.65 : x
  2. Step 2: Convert to fraction form
    1,102,893.21/1,653,631.77 = 428,255.65/x
  3. Step 3: Cross multiply
    1,102,893.21x = 1,653,631.77 × 428,255.65
  4. Step 4: Simplify right side
    1,102,893.21x = 708,177,151,659.68
  5. Step 5: Solve for x
    x = 708,177,151,659.68/1,102,893.21
  6. Step 6: Final answer
    x = 642,108.54

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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.