Home / 2,798,578.61-4,197,891.41-776,980.17

Finding the Fourth Proportional to 2,798,578.61, 4,197,891.41 and 776,980.17

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Solution

The fourth proportional to 2,798,578.61, 4,197,891.41 and 776,980.17 is: 1,165,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,578.61 : 4,197,891.41 = 776,980.17 : x
  2. Step 2: Convert to fraction form
    2,798,578.61/4,197,891.41 = 776,980.17/x
  3. Step 3: Cross multiply
    2,798,578.61x = 4,197,891.41 × 776,980.17
  4. Step 4: Simplify right side
    2,798,578.61x = 3,261,678,383,325.79
  5. Step 5: Solve for x
    x = 3,261,678,383,325.79/2,798,578.61
  6. Step 6: Final answer
    x = 1,165,476.78

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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.