Home / 801,217.37-1,105,680.30-438,664.70

Finding the Fourth Proportional to 801,217.37, 1,105,680.30 and 438,664.70

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Solution

The fourth proportional to 801,217.37, 1,105,680.30 and 438,664.70 is: 605,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,217.37 : 1,105,680.30 = 438,664.70 : x
  2. Step 2: Convert to fraction form
    801,217.37/1,105,680.30 = 438,664.70/x
  3. Step 3: Cross multiply
    801,217.37x = 1,105,680.30 × 438,664.70
  4. Step 4: Simplify right side
    801,217.37x = 485,022,917,095.41
  5. Step 5: Solve for x
    x = 485,022,917,095.41/801,217.37
  6. Step 6: Final answer
    x = 605,357.47

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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.