Home / 439,171.20-658,163.52-320,284.80

Finding the Fourth Proportional to 439,171.20, 658,163.52 and 320,284.80

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Solution

The fourth proportional to 439,171.20, 658,163.52 and 320,284.80 is: 479,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,171.20 : 658,163.52 = 320,284.80 : x
  2. Step 2: Convert to fraction form
    439,171.20/658,163.52 = 320,284.80/x
  3. Step 3: Cross multiply
    439,171.20x = 658,163.52 × 320,284.80
  4. Step 4: Simplify right side
    439,171.20x = 210,799,771,370.50
  5. Step 5: Solve for x
    x = 210,799,771,370.50/439,171.20
  6. Step 6: Final answer
    x = 479,994.52

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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.