Home / 800,858.30-1,105,169.67-438,274.85

Finding the Fourth Proportional to 800,858.30, 1,105,169.67 and 438,274.85

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Solution

The fourth proportional to 800,858.30, 1,105,169.67 and 438,274.85 is: 604,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,858.30 : 1,105,169.67 = 438,274.85 : x
  2. Step 2: Convert to fraction form
    800,858.30/1,105,169.67 = 438,274.85/x
  3. Step 3: Cross multiply
    800,858.30x = 1,105,169.67 × 438,274.85
  4. Step 4: Simplify right side
    800,858.30x = 484,368,065,817.95
  5. Step 5: Solve for x
    x = 484,368,065,817.95/800,858.30
  6. Step 6: Final answer
    x = 604,811.20

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1.5x scale

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.