Home / 800,788.60-1,105,088.38-438,212.54

Finding the Fourth Proportional to 800,788.60, 1,105,088.38 and 438,212.54

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Solution

The fourth proportional to 800,788.60, 1,105,088.38 and 438,212.54 is: 604,733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,788.60 : 1,105,088.38 = 438,212.54 : x
  2. Step 2: Convert to fraction form
    800,788.60/1,105,088.38 = 438,212.54/x
  3. Step 3: Cross multiply
    800,788.60x = 1,105,088.38 × 438,212.54
  4. Step 4: Simplify right side
    800,788.60x = 484,263,587,591.48
  5. Step 5: Solve for x
    x = 484,263,587,591.48/800,788.60
  6. Step 6: Final answer
    x = 604,733.37

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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.