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Finding the Fourth Proportional to 447,698.39, 671,319.52 and 220,009.19

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Solution

The fourth proportional to 447,698.39, 671,319.52 and 220,009.19 is: 329,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,698.39 : 671,319.52 = 220,009.19 : x
  2. Step 2: Convert to fraction form
    447,698.39/671,319.52 = 220,009.19/x
  3. Step 3: Cross multiply
    447,698.39x = 671,319.52 × 220,009.19
  4. Step 4: Simplify right side
    447,698.39x = 147,696,463,826.39
  5. Step 5: Solve for x
    x = 147,696,463,826.39/447,698.39
  6. Step 6: Final answer
    x = 329,901.71

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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.