Home / 880,380.51-1,320,186.21-311,572.56

Finding the Fourth Proportional to 880,380.51, 1,320,186.21 and 311,572.56

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Solution

The fourth proportional to 880,380.51, 1,320,186.21 and 311,572.56 is: 467,222.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,380.51 : 1,320,186.21 = 311,572.56 : x
  2. Step 2: Convert to fraction form
    880,380.51/1,320,186.21 = 311,572.56/x
  3. Step 3: Cross multiply
    880,380.51x = 1,320,186.21 × 311,572.56
  4. Step 4: Simplify right side
    880,380.51x = 411,333,797,126.40
  5. Step 5: Solve for x
    x = 411,333,797,126.40/880,380.51
  6. Step 6: Final answer
    x = 467,222.74

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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.