Home / 2,485,486.78-3,429,939.09-1,397,758.06

Finding the Fourth Proportional to 2,485,486.78, 3,429,939.09 and 1,397,758.06

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Solution

The fourth proportional to 2,485,486.78, 3,429,939.09 and 1,397,758.06 is: 1,928,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,486.78 : 3,429,939.09 = 1,397,758.06 : x
  2. Step 2: Convert to fraction form
    2,485,486.78/3,429,939.09 = 1,397,758.06/x
  3. Step 3: Cross multiply
    2,485,486.78x = 3,429,939.09 × 1,397,758.06
  4. Step 4: Simplify right side
    2,485,486.78x = 4,794,225,008,356.57
  5. Step 5: Solve for x
    x = 4,794,225,008,356.57/2,485,486.78
  6. Step 6: Final answer
    x = 1,928,887.75

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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.