Home / 2,778,698.77-4,167,464.94-783,688.21

Finding the Fourth Proportional to 2,778,698.77, 4,167,464.94 and 783,688.21

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Solution

The fourth proportional to 2,778,698.77, 4,167,464.94 and 783,688.21 is: 1,175,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,698.77 : 4,167,464.94 = 783,688.21 : x
  2. Step 2: Convert to fraction form
    2,778,698.77/4,167,464.94 = 783,688.21/x
  3. Step 3: Cross multiply
    2,778,698.77x = 4,167,464.94 × 783,688.21
  4. Step 4: Simplify right side
    2,778,698.77x = 3,265,993,118,229.03
  5. Step 5: Solve for x
    x = 3,265,993,118,229.03/2,778,698.77
  6. Step 6: Final answer
    x = 1,175,367.82

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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.