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Finding the Fourth Proportional to 672,379.58, 927,860.09 and 366,449.90

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Solution

The fourth proportional to 672,379.58, 927,860.09 and 366,449.90 is: 505,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,379.58 : 927,860.09 = 366,449.90 : x
  2. Step 2: Convert to fraction form
    672,379.58/927,860.09 = 366,449.90/x
  3. Step 3: Cross multiply
    672,379.58x = 927,860.09 × 366,449.90
  4. Step 4: Simplify right side
    672,379.58x = 340,014,230,722.94
  5. Step 5: Solve for x
    x = 340,014,230,722.94/672,379.58
  6. Step 6: Final answer
    x = 505,687.92

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1.5x scale

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.