Home / 2,199,122.20-3,298,683.30-779,321.80

Finding the Fourth Proportional to 2,199,122.20, 3,298,683.30 and 779,321.80

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Solution

The fourth proportional to 2,199,122.20, 3,298,683.30 and 779,321.80 is: 1,168,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199,122.20 : 3,298,683.30 = 779,321.80 : x
  2. Step 2: Convert to fraction form
    2,199,122.20/3,298,683.30 = 779,321.80/x
  3. Step 3: Cross multiply
    2,199,122.20x = 3,298,683.30 × 779,321.80
  4. Step 4: Simplify right side
    2,199,122.20x = 2,570,735,806,985.94
  5. Step 5: Solve for x
    x = 2,570,735,806,985.94/2,199,122.20
  6. Step 6: Final answer
    x = 1,168,982.70

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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.