Home / 2,681,726.40-4,022,589.60-1,831,420.80

Finding the Fourth Proportional to 2,681,726.40, 4,022,589.60 and 1,831,420.80

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Solution

The fourth proportional to 2,681,726.40, 4,022,589.60 and 1,831,420.80 is: 2,747,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681,726.40 : 4,022,589.60 = 1,831,420.80 : x
  2. Step 2: Convert to fraction form
    2,681,726.40/4,022,589.60 = 1,831,420.80/x
  3. Step 3: Cross multiply
    2,681,726.40x = 4,022,589.60 × 1,831,420.80
  4. Step 4: Simplify right side
    2,681,726.40x = 7,367,054,263,303.68
  5. Step 5: Solve for x
    x = 7,367,054,263,303.68/2,681,726.40
  6. Step 6: Final answer
    x = 2,747,131.20

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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.