Home / 880,321.88-1,320,238.92-311,628.07

Finding the Fourth Proportional to 880,321.88, 1,320,238.92 and 311,628.07

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Solution

The fourth proportional to 880,321.88, 1,320,238.92 and 311,628.07 is: 467,355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,321.88 : 1,320,238.92 = 311,628.07 : x
  2. Step 2: Convert to fraction form
    880,321.88/1,320,238.92 = 311,628.07/x
  3. Step 3: Cross multiply
    880,321.88x = 1,320,238.92 × 311,628.07
  4. Step 4: Simplify right side
    880,321.88x = 411,423,509,397.39
  5. Step 5: Solve for x
    x = 411,423,509,397.39/880,321.88
  6. Step 6: Final answer
    x = 467,355.77

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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.