Home / 2,198,782.80-3,298,174.20-778,885.20

Finding the Fourth Proportional to 2,198,782.80, 3,298,174.20 and 778,885.20

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Solution

The fourth proportional to 2,198,782.80, 3,298,174.20 and 778,885.20 is: 1,168,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,782.80 : 3,298,174.20 = 778,885.20 : x
  2. Step 2: Convert to fraction form
    2,198,782.80/3,298,174.20 = 778,885.20/x
  3. Step 3: Cross multiply
    2,198,782.80x = 3,298,174.20 × 778,885.20
  4. Step 4: Simplify right side
    2,198,782.80x = 2,568,899,071,401.84
  5. Step 5: Solve for x
    x = 2,568,899,071,401.84/2,198,782.80
  6. Step 6: Final answer
    x = 1,168,327.80

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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.