Home / 820,930.32-1,132,584.66-481,332.96

Finding the Fourth Proportional to 820,930.32, 1,132,584.66 and 481,332.96

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Solution

The fourth proportional to 820,930.32, 1,132,584.66 and 481,332.96 is: 664,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,930.32 : 1,132,584.66 = 481,332.96 : x
  2. Step 2: Convert to fraction form
    820,930.32/1,132,584.66 = 481,332.96/x
  3. Step 3: Cross multiply
    820,930.32x = 1,132,584.66 × 481,332.96
  4. Step 4: Simplify right side
    820,930.32x = 545,150,326,848.39
  5. Step 5: Solve for x
    x = 545,150,326,848.39/820,930.32
  6. Step 6: Final answer
    x = 664,064.07

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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.