Home / 811,849.56-1,120,329.48-449,288.52

Finding the Fourth Proportional to 811,849.56, 1,120,329.48 and 449,288.52

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Solution

The fourth proportional to 811,849.56, 1,120,329.48 and 449,288.52 is: 620,005.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,849.56 : 1,120,329.48 = 449,288.52 : x
  2. Step 2: Convert to fraction form
    811,849.56/1,120,329.48 = 449,288.52/x
  3. Step 3: Cross multiply
    811,849.56x = 1,120,329.48 × 449,288.52
  4. Step 4: Simplify right side
    811,849.56x = 503,351,173,981.57
  5. Step 5: Solve for x
    x = 503,351,173,981.57/811,849.56
  6. Step 6: Final answer
    x = 620,005.48

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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.