Home / 1,121,621.58-1,682,180.87-322,725.06

Finding the Fourth Proportional to 1,121,621.58, 1,682,180.87 and 322,725.06

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Solution

The fourth proportional to 1,121,621.58, 1,682,180.87 and 322,725.06 is: 484,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,621.58 : 1,682,180.87 = 322,725.06 : x
  2. Step 2: Convert to fraction form
    1,121,621.58/1,682,180.87 = 322,725.06/x
  3. Step 3: Cross multiply
    1,121,621.58x = 1,682,180.87 × 322,725.06
  4. Step 4: Simplify right side
    1,121,621.58x = 542,881,920,587.98
  5. Step 5: Solve for x
    x = 542,881,920,587.98/1,121,621.58
  6. Step 6: Final answer
    x = 484,015.22

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1.5x scale

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.