Home / 820,902.28-1,133,033.86-481,479.88

Finding the Fourth Proportional to 820,902.28, 1,133,033.86 and 481,479.88

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Solution

The fourth proportional to 820,902.28, 1,133,033.86 and 481,479.88 is: 664,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,902.28 : 1,133,033.86 = 481,479.88 : x
  2. Step 2: Convert to fraction form
    820,902.28/1,133,033.86 = 481,479.88/x
  3. Step 3: Cross multiply
    820,902.28x = 1,133,033.86 × 481,479.88
  4. Step 4: Simplify right side
    820,902.28x = 545,533,006,948.74
  5. Step 5: Solve for x
    x = 545,533,006,948.74/820,902.28
  6. Step 6: Final answer
    x = 664,552.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.