Home / 1,221,375.53-1,831,177.55-821,023.31

Finding the Fourth Proportional to 1,221,375.53, 1,831,177.55 and 821,023.31

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Solution

The fourth proportional to 1,221,375.53, 1,831,177.55 and 821,023.31 is: 1,230,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,375.53 : 1,831,177.55 = 821,023.31 : x
  2. Step 2: Convert to fraction form
    1,221,375.53/1,831,177.55 = 821,023.31/x
  3. Step 3: Cross multiply
    1,221,375.53x = 1,831,177.55 × 821,023.31
  4. Step 4: Simplify right side
    1,221,375.53x = 1,503,439,453,298.69
  5. Step 5: Solve for x
    x = 1,503,439,453,298.69/1,221,375.53
  6. Step 6: Final answer
    x = 1,230,939.56

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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.