Home / 800,231.58-1,105,397.92-640,230.66

Finding the Fourth Proportional to 800,231.58, 1,105,397.92 and 640,230.66

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Solution

The fourth proportional to 800,231.58, 1,105,397.92 and 640,230.66 is: 884,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,231.58 : 1,105,397.92 = 640,230.66 : x
  2. Step 2: Convert to fraction form
    800,231.58/1,105,397.92 = 640,230.66/x
  3. Step 3: Cross multiply
    800,231.58x = 1,105,397.92 × 640,230.66
  4. Step 4: Simplify right side
    800,231.58x = 707,709,639,884.23
  5. Step 5: Solve for x
    x = 707,709,639,884.23/800,231.58
  6. Step 6: Final answer
    x = 884,381.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.