Home / 1,488,119.20-2,231,939.84-408,379.59

Finding the Fourth Proportional to 1,488,119.20, 2,231,939.84 and 408,379.59

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Solution

The fourth proportional to 1,488,119.20, 2,231,939.84 and 408,379.59 is: 612,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,119.20 : 2,231,939.84 = 408,379.59 : x
  2. Step 2: Convert to fraction form
    1,488,119.20/2,231,939.84 = 408,379.59/x
  3. Step 3: Cross multiply
    1,488,119.20x = 2,231,939.84 × 408,379.59
  4. Step 4: Simplify right side
    1,488,119.20x = 911,478,665,093.69
  5. Step 5: Solve for x
    x = 911,478,665,093.69/1,488,119.20
  6. Step 6: Final answer
    x = 612,503.80

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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.