Home / 880,379.51-1,320,184.71-311,571.56

Finding the Fourth Proportional to 880,379.51, 1,320,184.71 and 311,571.56

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Solution

The fourth proportional to 880,379.51, 1,320,184.71 and 311,571.56 is: 467,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,379.51 : 1,320,184.71 = 311,571.56 : x
  2. Step 2: Convert to fraction form
    880,379.51/1,320,184.71 = 311,571.56/x
  3. Step 3: Cross multiply
    880,379.51x = 1,320,184.71 × 311,571.56
  4. Step 4: Simplify right side
    880,379.51x = 411,332,014,197.74
  5. Step 5: Solve for x
    x = 411,332,014,197.74/880,379.51
  6. Step 6: Final answer
    x = 467,221.25

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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.