Home / 2,278,272.69-3,143,981.79-1,245,783.78

Finding the Fourth Proportional to 2,278,272.69, 3,143,981.79 and 1,245,783.78

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Solution

The fourth proportional to 2,278,272.69, 3,143,981.79 and 1,245,783.78 is: 1,719,162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,272.69 : 3,143,981.79 = 1,245,783.78 : x
  2. Step 2: Convert to fraction form
    2,278,272.69/3,143,981.79 = 1,245,783.78/x
  3. Step 3: Cross multiply
    2,278,272.69x = 3,143,981.79 × 1,245,783.78
  4. Step 4: Simplify right side
    2,278,272.69x = 3,916,721,518,597.37
  5. Step 5: Solve for x
    x = 3,916,721,518,597.37/2,278,272.69
  6. Step 6: Final answer
    x = 1,719,162.74

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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.