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Finding the Fourth Proportional to 447,420.20, 617,439.96 and 246,216.20

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Solution

The fourth proportional to 447,420.20, 617,439.96 and 246,216.20 is: 339,778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,420.20 : 617,439.96 = 246,216.20 : x
  2. Step 2: Convert to fraction form
    447,420.20/617,439.96 = 246,216.20/x
  3. Step 3: Cross multiply
    447,420.20x = 617,439.96 × 246,216.20
  4. Step 4: Simplify right side
    447,420.20x = 152,023,717,592.15
  5. Step 5: Solve for x
    x = 152,023,717,592.15/447,420.20
  6. Step 6: Final answer
    x = 339,778.40

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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.