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Finding the Fourth Proportional to 672,209.21, 927,636.66 and 366,288.24

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Solution

The fourth proportional to 672,209.21, 927,636.66 and 366,288.24 is: 505,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,209.21 : 927,636.66 = 366,288.24 : x
  2. Step 2: Convert to fraction form
    672,209.21/927,636.66 = 366,288.24/x
  3. Step 3: Cross multiply
    672,209.21x = 927,636.66 × 366,288.24
  4. Step 4: Simplify right side
    672,209.21x = 339,782,399,550.88
  5. Step 5: Solve for x
    x = 339,782,399,550.88/672,209.21
  6. Step 6: Final answer
    x = 505,471.21

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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.