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Finding the Fourth Proportional to 447,439.58, 617,468.67 and 256,464.14

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Solution

The fourth proportional to 447,439.58, 617,468.67 and 256,464.14 is: 353,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,439.58 : 617,468.67 = 256,464.14 : x
  2. Step 2: Convert to fraction form
    447,439.58/617,468.67 = 256,464.14/x
  3. Step 3: Cross multiply
    447,439.58x = 617,468.67 × 256,464.14
  4. Step 4: Simplify right side
    447,439.58x = 158,358,571,428.49
  5. Step 5: Solve for x
    x = 158,358,571,428.49/447,439.58
  6. Step 6: Final answer
    x = 353,921.69

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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.