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Finding the Fourth Proportional to 447,425, 617,446.60 and 246,221

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Solution

The fourth proportional to 447,425, 617,446.60 and 246,221 is: 339,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,425 : 617,446.60 = 246,221 : x
  2. Step 2: Convert to fraction form
    447,425/617,446.60 = 246,221/x
  3. Step 3: Cross multiply
    447,425x = 617,446.60 × 246,221
  4. Step 4: Simplify right side
    447,425x = 152,028,319,298.60
  5. Step 5: Solve for x
    x = 152,028,319,298.60/447,425
  6. Step 6: Final answer
    x = 339,785.04

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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.