Home / 2,776,578.40-4,162,102.80-1,278,056.80

Finding the Fourth Proportional to 2,776,578.40, 4,162,102.80 and 1,278,056.80

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Solution

The fourth proportional to 2,776,578.40, 4,162,102.80 and 1,278,056.80 is: 1,915,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776,578.40 : 4,162,102.80 = 1,278,056.80 : x
  2. Step 2: Convert to fraction form
    2,776,578.40/4,162,102.80 = 1,278,056.80/x
  3. Step 3: Cross multiply
    2,776,578.40x = 4,162,102.80 × 1,278,056.80
  4. Step 4: Simplify right side
    2,776,578.40x = 5,319,403,785,839.04
  5. Step 5: Solve for x
    x = 5,319,403,785,839.04/2,776,578.40
  6. Step 6: Final answer
    x = 1,915,812.56

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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.