Home / 820,472.46-1,230,853.14-280,601.82

Finding the Fourth Proportional to 820,472.46, 1,230,853.14 and 280,601.82

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Solution

The fourth proportional to 820,472.46, 1,230,853.14 and 280,601.82 is: 420,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,472.46 : 1,230,853.14 = 280,601.82 : x
  2. Step 2: Convert to fraction form
    820,472.46/1,230,853.14 = 280,601.82/x
  3. Step 3: Cross multiply
    820,472.46x = 1,230,853.14 × 280,601.82
  4. Step 4: Simplify right side
    820,472.46x = 345,379,631,236.72
  5. Step 5: Solve for x
    x = 345,379,631,236.72/820,472.46
  6. Step 6: Final answer
    x = 420,952.13

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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.