Home / 783,076.36-1,080,388.38-438,862

Finding the Fourth Proportional to 783,076.36, 1,080,388.38 and 438,862

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Solution

The fourth proportional to 783,076.36, 1,080,388.38 and 438,862 is: 605,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,076.36 : 1,080,388.38 = 438,862 : x
  2. Step 2: Convert to fraction form
    783,076.36/1,080,388.38 = 438,862/x
  3. Step 3: Cross multiply
    783,076.36x = 1,080,388.38 × 438,862
  4. Step 4: Simplify right side
    783,076.36x = 474,141,405,223.56
  5. Step 5: Solve for x
    x = 474,141,405,223.56/783,076.36
  6. Step 6: Final answer
    x = 605,485.53

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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.