Home / 812,435.27-1,218,816.92-559,836.77

Finding the Fourth Proportional to 812,435.27, 1,218,816.92 and 559,836.77

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Solution

The fourth proportional to 812,435.27, 1,218,816.92 and 559,836.77 is: 839,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,435.27 : 1,218,816.92 = 559,836.77 : x
  2. Step 2: Convert to fraction form
    812,435.27/1,218,816.92 = 559,836.77/x
  3. Step 3: Cross multiply
    812,435.27x = 1,218,816.92 × 559,836.77
  4. Step 4: Simplify right side
    812,435.27x = 682,338,523,019.66
  5. Step 5: Solve for x
    x = 682,338,523,019.66/812,435.27
  6. Step 6: Final answer
    x = 839,868.17

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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.