Home / 448,003.20-672,004.80-412,233.60

Finding the Fourth Proportional to 448,003.20, 672,004.80 and 412,233.60

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Solution

The fourth proportional to 448,003.20, 672,004.80 and 412,233.60 is: 618,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,003.20 : 672,004.80 = 412,233.60 : x
  2. Step 2: Convert to fraction form
    448,003.20/672,004.80 = 412,233.60/x
  3. Step 3: Cross multiply
    448,003.20x = 672,004.80 × 412,233.60
  4. Step 4: Simplify right side
    448,003.20x = 277,022,957,921.28
  5. Step 5: Solve for x
    x = 277,022,957,921.28/448,003.20
  6. Step 6: Final answer
    x = 618,350.40

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Similar ratio
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1.5x scale

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.