Home / 1,115,005.45-1,538,576.97-656,019.07

Finding the Fourth Proportional to 1,115,005.45, 1,538,576.97 and 656,019.07

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Solution

The fourth proportional to 1,115,005.45, 1,538,576.97 and 656,019.07 is: 905,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,005.45 : 1,538,576.97 = 656,019.07 : x
  2. Step 2: Convert to fraction form
    1,115,005.45/1,538,576.97 = 656,019.07/x
  3. Step 3: Cross multiply
    1,115,005.45x = 1,538,576.97 × 656,019.07
  4. Step 4: Simplify right side
    1,115,005.45x = 1,009,335,832,982.82
  5. Step 5: Solve for x
    x = 1,009,335,832,982.82/1,115,005.45
  6. Step 6: Final answer
    x = 905,229.51

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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.