Home / 448,353.20-618,674.28-305,067.44

Finding the Fourth Proportional to 448,353.20, 618,674.28 and 305,067.44

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Solution

The fourth proportional to 448,353.20, 618,674.28 and 305,067.44 is: 420,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,353.20 : 618,674.28 = 305,067.44 : x
  2. Step 2: Convert to fraction form
    448,353.20/618,674.28 = 305,067.44/x
  3. Step 3: Cross multiply
    448,353.20x = 618,674.28 × 305,067.44
  4. Step 4: Simplify right side
    448,353.20x = 188,737,378,793.44
  5. Step 5: Solve for x
    x = 188,737,378,793.44/448,353.20
  6. Step 6: Final answer
    x = 420,956.91

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1.5x scale

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.