Home / 1,131,216.24-1,561,071.86-641,278.22

Finding the Fourth Proportional to 1,131,216.24, 1,561,071.86 and 641,278.22

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Solution

The fourth proportional to 1,131,216.24, 1,561,071.86 and 641,278.22 is: 884,960.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,216.24 : 1,561,071.86 = 641,278.22 : x
  2. Step 2: Convert to fraction form
    1,131,216.24/1,561,071.86 = 641,278.22/x
  3. Step 3: Cross multiply
    1,131,216.24x = 1,561,071.86 × 641,278.22
  4. Step 4: Simplify right side
    1,131,216.24x = 1,001,081,372,661.14
  5. Step 5: Solve for x
    x = 1,001,081,372,661.14/1,131,216.24
  6. Step 6: Final answer
    x = 884,960.22

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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.