Home / 2,378,639.88-3,282,524.72-1,290,911.20

Finding the Fourth Proportional to 2,378,639.88, 3,282,524.72 and 1,290,911.20

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Solution

The fourth proportional to 2,378,639.88, 3,282,524.72 and 1,290,911.20 is: 1,781,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,639.88 : 3,282,524.72 = 1,290,911.20 : x
  2. Step 2: Convert to fraction form
    2,378,639.88/3,282,524.72 = 1,290,911.20/x
  3. Step 3: Cross multiply
    2,378,639.88x = 3,282,524.72 × 1,290,911.20
  4. Step 4: Simplify right side
    2,378,639.88x = 4,237,447,925,324.86
  5. Step 5: Solve for x
    x = 4,237,447,925,324.86/2,378,639.88
  6. Step 6: Final answer
    x = 1,781,458.37

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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.