Home / 2,218,466.16-3,328,067.12-778,776.21

Finding the Fourth Proportional to 2,218,466.16, 3,328,067.12 and 778,776.21

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Solution

The fourth proportional to 2,218,466.16, 3,328,067.12 and 778,776.21 is: 1,168,293.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218,466.16 : 3,328,067.12 = 778,776.21 : x
  2. Step 2: Convert to fraction form
    2,218,466.16/3,328,067.12 = 778,776.21/x
  3. Step 3: Cross multiply
    2,218,466.16x = 3,328,067.12 × 778,776.21
  4. Step 4: Simplify right side
    2,218,466.16x = 2,591,819,498,339.22
  5. Step 5: Solve for x
    x = 2,591,819,498,339.22/2,218,466.16
  6. Step 6: Final answer
    x = 1,168,293.46

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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.