Home / 994,372.40-1,491,617.54-311,387

Finding the Fourth Proportional to 994,372.40, 1,491,617.54 and 311,387

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Solution

The fourth proportional to 994,372.40, 1,491,617.54 and 311,387 is: 467,098.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,372.40 : 1,491,617.54 = 311,387 : x
  2. Step 2: Convert to fraction form
    994,372.40/1,491,617.54 = 311,387/x
  3. Step 3: Cross multiply
    994,372.40x = 1,491,617.54 × 311,387
  4. Step 4: Simplify right side
    994,372.40x = 464,470,310,927.98
  5. Step 5: Solve for x
    x = 464,470,310,927.98/994,372.40
  6. Step 6: Final answer
    x = 467,098.96

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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.