Home / 639,026.09-881,825.22-348,620.36

Finding the Fourth Proportional to 639,026.09, 881,825.22 and 348,620.36

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Solution

The fourth proportional to 639,026.09, 881,825.22 and 348,620.36 is: 481,079.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,026.09 : 881,825.22 = 348,620.36 : x
  2. Step 2: Convert to fraction form
    639,026.09/881,825.22 = 348,620.36/x
  3. Step 3: Cross multiply
    639,026.09x = 881,825.22 × 348,620.36
  4. Step 4: Simplify right side
    639,026.09x = 307,422,227,858.04
  5. Step 5: Solve for x
    x = 307,422,227,858.04/639,026.09
  6. Step 6: Final answer
    x = 481,079.31

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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.