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Finding the Fourth Proportional to 448,286.40, 672,429.60 and 416,793.60

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Solution

The fourth proportional to 448,286.40, 672,429.60 and 416,793.60 is: 625,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,286.40 : 672,429.60 = 416,793.60 : x
  2. Step 2: Convert to fraction form
    448,286.40/672,429.60 = 416,793.60/x
  3. Step 3: Cross multiply
    448,286.40x = 672,429.60 × 416,793.60
  4. Step 4: Simplify right side
    448,286.40x = 280,264,353,730.56
  5. Step 5: Solve for x
    x = 280,264,353,730.56/448,286.40
  6. Step 6: Final answer
    x = 625,190.40

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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.