Home / 880,380.76-1,320,186.59-311,572.82

Finding the Fourth Proportional to 880,380.76, 1,320,186.59 and 311,572.82

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Solution

The fourth proportional to 880,380.76, 1,320,186.59 and 311,572.82 is: 467,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,380.76 : 1,320,186.59 = 311,572.82 : x
  2. Step 2: Convert to fraction form
    880,380.76/1,320,186.59 = 311,572.82/x
  3. Step 3: Cross multiply
    880,380.76x = 1,320,186.59 × 311,572.82
  4. Step 4: Simplify right side
    880,380.76x = 411,334,252,171.55
  5. Step 5: Solve for x
    x = 411,334,252,171.55/880,380.76
  6. Step 6: Final answer
    x = 467,223.13

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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.