Home / 1,986,119.78-2,976,846.85-918,907.52

Finding the Fourth Proportional to 1,986,119.78, 2,976,846.85 and 918,907.52

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Solution

The fourth proportional to 1,986,119.78, 2,976,846.85 and 918,907.52 is: 1,377,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,119.78 : 2,976,846.85 = 918,907.52 : x
  2. Step 2: Convert to fraction form
    1,986,119.78/2,976,846.85 = 918,907.52/x
  3. Step 3: Cross multiply
    1,986,119.78x = 2,976,846.85 × 918,907.52
  4. Step 4: Simplify right side
    1,986,119.78x = 2,735,446,956,353.31
  5. Step 5: Solve for x
    x = 2,735,446,956,353.31/1,986,119.78
  6. Step 6: Final answer
    x = 1,377,281.97

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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.