Home / 752,696.82-1,128,169.71-279,017.46

Finding the Fourth Proportional to 752,696.82, 1,128,169.71 and 279,017.46

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Solution

The fourth proportional to 752,696.82, 1,128,169.71 and 279,017.46 is: 418,201.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,696.82 : 1,128,169.71 = 279,017.46 : x
  2. Step 2: Convert to fraction form
    752,696.82/1,128,169.71 = 279,017.46/x
  3. Step 3: Cross multiply
    752,696.82x = 1,128,169.71 × 279,017.46
  4. Step 4: Simplify right side
    752,696.82x = 314,779,046,933.14
  5. Step 5: Solve for x
    x = 314,779,046,933.14/752,696.82
  6. Step 6: Final answer
    x = 418,201.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.