Home / 481,290.85-664,292.91-320,152.69

Finding the Fourth Proportional to 481,290.85, 664,292.91 and 320,152.69

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Solution

The fourth proportional to 481,290.85, 664,292.91 and 320,152.69 is: 441,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,290.85 : 664,292.91 = 320,152.69 : x
  2. Step 2: Convert to fraction form
    481,290.85/664,292.91 = 320,152.69/x
  3. Step 3: Cross multiply
    481,290.85x = 664,292.91 × 320,152.69
  4. Step 4: Simplify right side
    481,290.85x = 212,675,162,084.43
  5. Step 5: Solve for x
    x = 212,675,162,084.43/481,290.85
  6. Step 6: Final answer
    x = 441,884.91

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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.