Home / 439,479.21-659,237.96-215,028.62

Finding the Fourth Proportional to 439,479.21, 659,237.96 and 215,028.62

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Solution

The fourth proportional to 439,479.21, 659,237.96 and 215,028.62 is: 322,552.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,479.21 : 659,237.96 = 215,028.62 : x
  2. Step 2: Convert to fraction form
    439,479.21/659,237.96 = 215,028.62/x
  3. Step 3: Cross multiply
    439,479.21x = 659,237.96 × 215,028.62
  4. Step 4: Simplify right side
    439,479.21x = 141,755,026,031.80
  5. Step 5: Solve for x
    x = 141,755,026,031.80/439,479.21
  6. Step 6: Final answer
    x = 322,552.29

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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.