Home / 667,749.42-1,000,955.88-331,036.47

Finding the Fourth Proportional to 667,749.42, 1,000,955.88 and 331,036.47

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Solution

The fourth proportional to 667,749.42, 1,000,955.88 and 331,036.47 is: 496,223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,749.42 : 1,000,955.88 = 331,036.47 : x
  2. Step 2: Convert to fraction form
    667,749.42/1,000,955.88 = 331,036.47/x
  3. Step 3: Cross multiply
    667,749.42x = 1,000,955.88 × 331,036.47
  4. Step 4: Simplify right side
    667,749.42x = 331,352,901,140.94
  5. Step 5: Solve for x
    x = 331,352,901,140.94/667,749.42
  6. Step 6: Final answer
    x = 496,223.42

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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.