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Finding the Fourth Proportional to 447,456.64, 617,502.56 and 243,509.44

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Solution

The fourth proportional to 447,456.64, 617,502.56 and 243,509.44 is: 336,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,456.64 : 617,502.56 = 243,509.44 : x
  2. Step 2: Convert to fraction form
    447,456.64/617,502.56 = 243,509.44/x
  3. Step 3: Cross multiply
    447,456.64x = 617,502.56 × 243,509.44
  4. Step 4: Simplify right side
    447,456.64x = 150,367,702,584.17
  5. Step 5: Solve for x
    x = 150,367,702,584.17/447,456.64
  6. Step 6: Final answer
    x = 336,049.77

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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.