Home / 1,074,278.78-1,612,128.03-505,822.46

Finding the Fourth Proportional to 1,074,278.78, 1,612,128.03 and 505,822.46

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Solution

The fourth proportional to 1,074,278.78, 1,612,128.03 and 505,822.46 is: 759,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,278.78 : 1,612,128.03 = 505,822.46 : x
  2. Step 2: Convert to fraction form
    1,074,278.78/1,612,128.03 = 505,822.46/x
  3. Step 3: Cross multiply
    1,074,278.78x = 1,612,128.03 × 505,822.46
  4. Step 4: Simplify right side
    1,074,278.78x = 815,450,565,969.55
  5. Step 5: Solve for x
    x = 815,450,565,969.55/1,074,278.78
  6. Step 6: Final answer
    x = 759,067.93

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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.