Home / 1,115,087.02-1,538,838.78-605,789.80

Finding the Fourth Proportional to 1,115,087.02, 1,538,838.78 and 605,789.80

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Solution

The fourth proportional to 1,115,087.02, 1,538,838.78 and 605,789.80 is: 836,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,087.02 : 1,538,838.78 = 605,789.80 : x
  2. Step 2: Convert to fraction form
    1,115,087.02/1,538,838.78 = 605,789.80/x
  3. Step 3: Cross multiply
    1,115,087.02x = 1,538,838.78 × 605,789.80
  4. Step 4: Simplify right side
    1,115,087.02x = 932,212,836,768.44
  5. Step 5: Solve for x
    x = 932,212,836,768.44/1,115,087.02
  6. Step 6: Final answer
    x = 836,000.08

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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.