Home / 800,810.73-1,105,118.82-438,234.62

Finding the Fourth Proportional to 800,810.73, 1,105,118.82 and 438,234.62

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Solution

The fourth proportional to 800,810.73, 1,105,118.82 and 438,234.62 is: 604,763.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,810.73 : 1,105,118.82 = 438,234.62 : x
  2. Step 2: Convert to fraction form
    800,810.73/1,105,118.82 = 438,234.62/x
  3. Step 3: Cross multiply
    800,810.73x = 1,105,118.82 × 438,234.62
  4. Step 4: Simplify right side
    800,810.73x = 484,301,320,611.95
  5. Step 5: Solve for x
    x = 484,301,320,611.95/800,810.73
  6. Step 6: Final answer
    x = 604,763.78

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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.