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Finding the Fourth Proportional to 447,380.76, 617,366.82 and 243,432.48

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Solution

The fourth proportional to 447,380.76, 617,366.82 and 243,432.48 is: 335,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,380.76 : 617,366.82 = 243,432.48 : x
  2. Step 2: Convert to fraction form
    447,380.76/617,366.82 = 243,432.48/x
  3. Step 3: Cross multiply
    447,380.76x = 617,366.82 × 243,432.48
  4. Step 4: Simplify right side
    447,380.76x = 150,287,136,062.31
  5. Step 5: Solve for x
    x = 150,287,136,062.31/447,380.76
  6. Step 6: Final answer
    x = 335,926.69

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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.