Home / 801,284.96-1,105,731.24-438,639.39

Finding the Fourth Proportional to 801,284.96, 1,105,731.24 and 438,639.39

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Solution

The fourth proportional to 801,284.96, 1,105,731.24 and 438,639.39 is: 605,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,284.96 : 1,105,731.24 = 438,639.39 : x
  2. Step 2: Convert to fraction form
    801,284.96/1,105,731.24 = 438,639.39/x
  3. Step 3: Cross multiply
    801,284.96x = 1,105,731.24 × 438,639.39
  4. Step 4: Simplify right side
    801,284.96x = 485,017,276,617.54
  5. Step 5: Solve for x
    x = 485,017,276,617.54/801,284.96
  6. Step 6: Final answer
    x = 605,299.37

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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.