Home / 447,944.21-671,314.80-219,891.65

Finding the Fourth Proportional to 447,944.21, 671,314.80 and 219,891.65

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Solution

The fourth proportional to 447,944.21, 671,314.80 and 219,891.65 is: 329,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,944.21 : 671,314.80 = 219,891.65 : x
  2. Step 2: Convert to fraction form
    447,944.21/671,314.80 = 219,891.65/x
  3. Step 3: Cross multiply
    447,944.21x = 671,314.80 × 219,891.65
  4. Step 4: Simplify right side
    447,944.21x = 147,616,516,509.44
  5. Step 5: Solve for x
    x = 147,616,516,509.44/447,944.21
  6. Step 6: Final answer
    x = 329,542.19

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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.