Home / 1,115,864.88-1,538,468.11-722,703.33

Finding the Fourth Proportional to 1,115,864.88, 1,538,468.11 and 722,703.33

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Solution

The fourth proportional to 1,115,864.88, 1,538,468.11 and 722,703.33 is: 996,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,864.88 : 1,538,468.11 = 722,703.33 : x
  2. Step 2: Convert to fraction form
    1,115,864.88/1,538,468.11 = 722,703.33/x
  3. Step 3: Cross multiply
    1,115,864.88x = 1,538,468.11 × 722,703.33
  4. Step 4: Simplify right side
    1,115,864.88x = 1,111,856,026,195.81
  5. Step 5: Solve for x
    x = 1,111,856,026,195.81/1,115,864.88
  6. Step 6: Final answer
    x = 996,407.40

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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.