Home / 801,216.75-1,105,645.81-438,631.59

Finding the Fourth Proportional to 801,216.75, 1,105,645.81 and 438,631.59

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Solution

The fourth proportional to 801,216.75, 1,105,645.81 and 438,631.59 is: 605,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,216.75 : 1,105,645.81 = 438,631.59 : x
  2. Step 2: Convert to fraction form
    801,216.75/1,105,645.81 = 438,631.59/x
  3. Step 3: Cross multiply
    801,216.75x = 1,105,645.81 × 438,631.59
  4. Step 4: Simplify right side
    801,216.75x = 484,971,179,617.14
  5. Step 5: Solve for x
    x = 484,971,179,617.14/801,216.75
  6. Step 6: Final answer
    x = 605,293.36

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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.