Home / 1,321,167.32-1,981,750.99-323,895.32

Finding the Fourth Proportional to 1,321,167.32, 1,981,750.99 and 323,895.32

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Solution

The fourth proportional to 1,321,167.32, 1,981,750.99 and 323,895.32 is: 485,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,167.32 : 1,981,750.99 = 323,895.32 : x
  2. Step 2: Convert to fraction form
    1,321,167.32/1,981,750.99 = 323,895.32/x
  3. Step 3: Cross multiply
    1,321,167.32x = 1,981,750.99 × 323,895.32
  4. Step 4: Simplify right side
    1,321,167.32x = 641,879,869,446.89
  5. Step 5: Solve for x
    x = 641,879,869,446.89/1,321,167.32
  6. Step 6: Final answer
    x = 485,842.98

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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.