Home / 800,872.75-1,105,189.62-438,289.33

Finding the Fourth Proportional to 800,872.75, 1,105,189.62 and 438,289.33

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Solution

The fourth proportional to 800,872.75, 1,105,189.62 and 438,289.33 is: 604,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,872.75 : 1,105,189.62 = 438,289.33 : x
  2. Step 2: Convert to fraction form
    800,872.75/1,105,189.62 = 438,289.33/x
  3. Step 3: Cross multiply
    800,872.75x = 1,105,189.62 × 438,289.33
  4. Step 4: Simplify right side
    800,872.75x = 484,392,818,072.76
  5. Step 5: Solve for x
    x = 484,392,818,072.76/800,872.75
  6. Step 6: Final answer
    x = 604,831.19

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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.