Home / 800,854.97-1,105,165.09-438,271.56

Finding the Fourth Proportional to 800,854.97, 1,105,165.09 and 438,271.56

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Solution

The fourth proportional to 800,854.97, 1,105,165.09 and 438,271.56 is: 604,806.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,854.97 : 1,105,165.09 = 438,271.56 : x
  2. Step 2: Convert to fraction form
    800,854.97/1,105,165.09 = 438,271.56/x
  3. Step 3: Cross multiply
    800,854.97x = 1,105,165.09 × 438,271.56
  4. Step 4: Simplify right side
    800,854.97x = 484,362,427,367.04
  5. Step 5: Solve for x
    x = 484,362,427,367.04/800,854.97
  6. Step 6: Final answer
    x = 604,806.67

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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.