Home / 660,249.06-990,439.22-239,557.74

Finding the Fourth Proportional to 660,249.06, 990,439.22 and 239,557.74

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Solution

The fourth proportional to 660,249.06, 990,439.22 and 239,557.74 is: 359,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,249.06 : 990,439.22 = 239,557.74 : x
  2. Step 2: Convert to fraction form
    660,249.06/990,439.22 = 239,557.74/x
  3. Step 3: Cross multiply
    660,249.06x = 990,439.22 × 239,557.74
  4. Step 4: Simplify right side
    660,249.06x = 237,267,381,150.56
  5. Step 5: Solve for x
    x = 237,267,381,150.56/660,249.06
  6. Step 6: Final answer
    x = 359,360.42

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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.