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Finding the Fourth Proportional to 448,084.92, 618,585.77 and 303,653.73

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Solution

The fourth proportional to 448,084.92, 618,585.77 and 303,653.73 is: 419,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,084.92 : 618,585.77 = 303,653.73 : x
  2. Step 2: Convert to fraction form
    448,084.92/618,585.77 = 303,653.73/x
  3. Step 3: Cross multiply
    448,084.92x = 618,585.77 × 303,653.73
  4. Step 4: Simplify right side
    448,084.92x = 187,835,876,385.42
  5. Step 5: Solve for x
    x = 187,835,876,385.42/448,084.92
  6. Step 6: Final answer
    x = 419,197.05

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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.