Home / 1,435,584.78-1,981,246.62-1,072,378.08

Finding the Fourth Proportional to 1,435,584.78, 1,981,246.62 and 1,072,378.08

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Solution

The fourth proportional to 1,435,584.78, 1,981,246.62 and 1,072,378.08 is: 1,479,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,584.78 : 1,981,246.62 = 1,072,378.08 : x
  2. Step 2: Convert to fraction form
    1,435,584.78/1,981,246.62 = 1,072,378.08/x
  3. Step 3: Cross multiply
    1,435,584.78x = 1,981,246.62 × 1,072,378.08
  4. Step 4: Simplify right side
    1,435,584.78x = 2,124,645,446,362.09
  5. Step 5: Solve for x
    x = 2,124,645,446,362.09/1,435,584.78
  6. Step 6: Final answer
    x = 1,479,986.05

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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.