Home / 2,217,974.86-3,328,448.40-778,662.55

Finding the Fourth Proportional to 2,217,974.86, 3,328,448.40 and 778,662.55

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Solution

The fourth proportional to 2,217,974.86, 3,328,448.40 and 778,662.55 is: 1,168,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217,974.86 : 3,328,448.40 = 778,662.55 : x
  2. Step 2: Convert to fraction form
    2,217,974.86/3,328,448.40 = 778,662.55/x
  3. Step 3: Cross multiply
    2,217,974.86x = 3,328,448.40 × 778,662.55
  4. Step 4: Simplify right side
    2,217,974.86x = 2,591,738,110,366.30
  5. Step 5: Solve for x
    x = 2,591,738,110,366.30/2,217,974.86
  6. Step 6: Final answer
    x = 1,168,515.55

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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.