Home / 820,922.30-1,231,383.45-820,922.30

Finding the Fourth Proportional to 820,922.30, 1,231,383.45 and 820,922.30

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Solution

The fourth proportional to 820,922.30, 1,231,383.45 and 820,922.30 is: 1,231,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,922.30 : 1,231,383.45 = 820,922.30 : x
  2. Step 2: Convert to fraction form
    820,922.30/1,231,383.45 = 820,922.30/x
  3. Step 3: Cross multiply
    820,922.30x = 1,231,383.45 × 820,922.30
  4. Step 4: Simplify right side
    820,922.30x = 1,010,870,133,955.94
  5. Step 5: Solve for x
    x = 1,010,870,133,955.94/820,922.30
  6. Step 6: Final answer
    x = 1,231,383.45

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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.