Home / 667,812.21-1,002,047.18-312,764.91

Finding the Fourth Proportional to 667,812.21, 1,002,047.18 and 312,764.91

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Solution

The fourth proportional to 667,812.21, 1,002,047.18 and 312,764.91 is: 469,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,812.21 : 1,002,047.18 = 312,764.91 : x
  2. Step 2: Convert to fraction form
    667,812.21/1,002,047.18 = 312,764.91/x
  3. Step 3: Cross multiply
    667,812.21x = 1,002,047.18 × 312,764.91
  4. Step 4: Simplify right side
    667,812.21x = 313,405,194,504.63
  5. Step 5: Solve for x
    x = 313,405,194,504.63/667,812.21
  6. Step 6: Final answer
    x = 469,301.38

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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.