Home / 880,218.50-1,320,333.21-311,475.78

Finding the Fourth Proportional to 880,218.50, 1,320,333.21 and 311,475.78

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Solution

The fourth proportional to 880,218.50, 1,320,333.21 and 311,475.78 is: 467,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,218.50 : 1,320,333.21 = 311,475.78 : x
  2. Step 2: Convert to fraction form
    880,218.50/1,320,333.21 = 311,475.78/x
  3. Step 3: Cross multiply
    880,218.50x = 1,320,333.21 × 311,475.78
  4. Step 4: Simplify right side
    880,218.50x = 411,251,816,444.65
  5. Step 5: Solve for x
    x = 411,251,816,444.65/880,218.50
  6. Step 6: Final answer
    x = 467,215.60

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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.