Home / 2,810,687.90-4,218,000.15-1,214,396.60

Finding the Fourth Proportional to 2,810,687.90, 4,218,000.15 and 1,214,396.60

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Solution

The fourth proportional to 2,810,687.90, 4,218,000.15 and 1,214,396.60 is: 1,822,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,687.90 : 4,218,000.15 = 1,214,396.60 : x
  2. Step 2: Convert to fraction form
    2,810,687.90/4,218,000.15 = 1,214,396.60/x
  3. Step 3: Cross multiply
    2,810,687.90x = 4,218,000.15 × 1,214,396.60
  4. Step 4: Simplify right side
    2,810,687.90x = 5,122,325,040,959.49
  5. Step 5: Solve for x
    x = 5,122,325,040,959.49/2,810,687.90
  6. Step 6: Final answer
    x = 1,822,445.33

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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.