Home / 1,131,284.96-1,561,159.48-842,188.16

Finding the Fourth Proportional to 1,131,284.96, 1,561,159.48 and 842,188.16

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Solution

The fourth proportional to 1,131,284.96, 1,561,159.48 and 842,188.16 is: 1,162,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,284.96 : 1,561,159.48 = 842,188.16 : x
  2. Step 2: Convert to fraction form
    1,131,284.96/1,561,159.48 = 842,188.16/x
  3. Step 3: Cross multiply
    1,131,284.96x = 1,561,159.48 × 842,188.16
  4. Step 4: Simplify right side
    1,131,284.96x = 1,314,790,020,016.49
  5. Step 5: Solve for x
    x = 1,314,790,020,016.49/1,131,284.96
  6. Step 6: Final answer
    x = 1,162,209.41

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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.