Home / 2,681,911.20-4,019,367.60-1,242,427.80

Finding the Fourth Proportional to 2,681,911.20, 4,019,367.60 and 1,242,427.80

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Solution

The fourth proportional to 2,681,911.20, 4,019,367.60 and 1,242,427.80 is: 1,862,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681,911.20 : 4,019,367.60 = 1,242,427.80 : x
  2. Step 2: Convert to fraction form
    2,681,911.20/4,019,367.60 = 1,242,427.80/x
  3. Step 3: Cross multiply
    2,681,911.20x = 4,019,367.60 × 1,242,427.80
  4. Step 4: Simplify right side
    2,681,911.20x = 4,993,774,044,659.28
  5. Step 5: Solve for x
    x = 4,993,774,044,659.28/2,681,911.20
  6. Step 6: Final answer
    x = 1,862,020.65

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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.