Home / 851,048.44-1,276,960.20-318,610.96

Finding the Fourth Proportional to 851,048.44, 1,276,960.20 and 318,610.96

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Solution

The fourth proportional to 851,048.44, 1,276,960.20 and 318,610.96 is: 478,061.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,048.44 : 1,276,960.20 = 318,610.96 : x
  2. Step 2: Convert to fraction form
    851,048.44/1,276,960.20 = 318,610.96/x
  3. Step 3: Cross multiply
    851,048.44x = 1,276,960.20 × 318,610.96
  4. Step 4: Simplify right side
    851,048.44x = 406,853,515,203.79
  5. Step 5: Solve for x
    x = 406,853,515,203.79/851,048.44
  6. Step 6: Final answer
    x = 478,061.53

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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.