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Finding the Fourth Proportional to 672,308.12, 927,785.36 and 366,384.56

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Solution

The fourth proportional to 672,308.12, 927,785.36 and 366,384.56 is: 505,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,308.12 : 927,785.36 = 366,384.56 : x
  2. Step 2: Convert to fraction form
    672,308.12/927,785.36 = 366,384.56/x
  3. Step 3: Cross multiply
    672,308.12x = 927,785.36 × 366,384.56
  4. Step 4: Simplify right side
    672,308.12x = 339,926,230,898.04
  5. Step 5: Solve for x
    x = 339,926,230,898.04/672,308.12
  6. Step 6: Final answer
    x = 505,610.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.