Home / 2,198,779.20-3,297,002.40-778,881.60

Finding the Fourth Proportional to 2,198,779.20, 3,297,002.40 and 778,881.60

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Solution

The fourth proportional to 2,198,779.20, 3,297,002.40 and 778,881.60 is: 1,167,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,779.20 : 3,297,002.40 = 778,881.60 : x
  2. Step 2: Convert to fraction form
    2,198,779.20/3,297,002.40 = 778,881.60/x
  3. Step 3: Cross multiply
    2,198,779.20x = 3,297,002.40 × 778,881.60
  4. Step 4: Simplify right side
    2,198,779.20x = 2,567,974,504,515.84
  5. Step 5: Solve for x
    x = 2,567,974,504,515.84/2,198,779.20
  6. Step 6: Final answer
    x = 1,167,909.22

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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.