Home / 850,614.86-1,275,879.88-318,096.74

Finding the Fourth Proportional to 850,614.86, 1,275,879.88 and 318,096.74

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Solution

The fourth proportional to 850,614.86, 1,275,879.88 and 318,096.74 is: 477,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,614.86 : 1,275,879.88 = 318,096.74 : x
  2. Step 2: Convert to fraction form
    850,614.86/1,275,879.88 = 318,096.74/x
  3. Step 3: Cross multiply
    850,614.86x = 1,275,879.88 × 318,096.74
  4. Step 4: Simplify right side
    850,614.86x = 405,853,230,459.59
  5. Step 5: Solve for x
    x = 405,853,230,459.59/850,614.86
  6. Step 6: Final answer
    x = 477,129.25

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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.