Home / 767,814.20-1,151,227.80-318,844.88

Finding the Fourth Proportional to 767,814.20, 1,151,227.80 and 318,844.88

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Solution

The fourth proportional to 767,814.20, 1,151,227.80 and 318,844.88 is: 478,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,814.20 : 1,151,227.80 = 318,844.88 : x
  2. Step 2: Convert to fraction form
    767,814.20/1,151,227.80 = 318,844.88/x
  3. Step 3: Cross multiply
    767,814.20x = 1,151,227.80 × 318,844.88
  4. Step 4: Simplify right side
    767,814.20x = 367,063,089,743.66
  5. Step 5: Solve for x
    x = 367,063,089,743.66/767,814.20
  6. Step 6: Final answer
    x = 478,062.39

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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.