Home / 447,917.80-671,479.94-321,239.46

Finding the Fourth Proportional to 447,917.80, 671,479.94 and 321,239.46

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Solution

The fourth proportional to 447,917.80, 671,479.94 and 321,239.46 is: 481,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,917.80 : 671,479.94 = 321,239.46 : x
  2. Step 2: Convert to fraction form
    447,917.80/671,479.94 = 321,239.46/x
  3. Step 3: Cross multiply
    447,917.80x = 671,479.94 × 321,239.46
  4. Step 4: Simplify right side
    447,917.80x = 215,705,853,326.43
  5. Step 5: Solve for x
    x = 215,705,853,326.43/447,917.80
  6. Step 6: Final answer
    x = 481,574.64

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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.