Home / 801,245.88-1,105,722.54-438,703.49

Finding the Fourth Proportional to 801,245.88, 1,105,722.54 and 438,703.49

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Solution

The fourth proportional to 801,245.88, 1,105,722.54 and 438,703.49 is: 605,412.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,245.88 : 1,105,722.54 = 438,703.49 : x
  2. Step 2: Convert to fraction form
    801,245.88/1,105,722.54 = 438,703.49/x
  3. Step 3: Cross multiply
    801,245.88x = 1,105,722.54 × 438,703.49
  4. Step 4: Simplify right side
    801,245.88x = 485,084,340,033.97
  5. Step 5: Solve for x
    x = 485,084,340,033.97/801,245.88
  6. Step 6: Final answer
    x = 605,412.59

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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.