Home / 1,115,964.72-1,538,585.82-722,798.16

Finding the Fourth Proportional to 1,115,964.72, 1,538,585.82 and 722,798.16

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Solution

The fourth proportional to 1,115,964.72, 1,538,585.82 and 722,798.16 is: 996,525.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,964.72 : 1,538,585.82 = 722,798.16 : x
  2. Step 2: Convert to fraction form
    1,115,964.72/1,538,585.82 = 722,798.16/x
  3. Step 3: Cross multiply
    1,115,964.72x = 1,538,585.82 × 722,798.16
  4. Step 4: Simplify right side
    1,115,964.72x = 1,112,086,999,698.09
  5. Step 5: Solve for x
    x = 1,112,086,999,698.09/1,115,964.72
  6. Step 6: Final answer
    x = 996,525.23

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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.