Home / 481,281.75-664,344.05-280,077.75

Finding the Fourth Proportional to 481,281.75, 664,344.05 and 280,077.75

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Solution

The fourth proportional to 481,281.75, 664,344.05 and 280,077.75 is: 386,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,281.75 : 664,344.05 = 280,077.75 : x
  2. Step 2: Convert to fraction form
    481,281.75/664,344.05 = 280,077.75/x
  3. Step 3: Cross multiply
    481,281.75x = 664,344.05 × 280,077.75
  4. Step 4: Simplify right side
    481,281.75x = 186,067,985,349.50
  5. Step 5: Solve for x
    x = 186,067,985,349.50/481,281.75
  6. Step 6: Final answer
    x = 386,609.27

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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.