Home / 801,215.75-1,105,644.43-438,630.59

Finding the Fourth Proportional to 801,215.75, 1,105,644.43 and 438,630.59

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Solution

The fourth proportional to 801,215.75, 1,105,644.43 and 438,630.59 is: 605,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,215.75 : 1,105,644.43 = 438,630.59 : x
  2. Step 2: Convert to fraction form
    801,215.75/1,105,644.43 = 438,630.59/x
  3. Step 3: Cross multiply
    801,215.75x = 1,105,644.43 × 438,630.59
  4. Step 4: Simplify right side
    801,215.75x = 484,969,471,973.51
  5. Step 5: Solve for x
    x = 484,969,471,973.51/801,215.75
  6. Step 6: Final answer
    x = 605,291.98

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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.