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Finding the Fourth Proportional to 447,429.78, 617,454.30 and 246,225.78

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Solution

The fourth proportional to 447,429.78, 617,454.30 and 246,225.78 is: 339,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,429.78 : 617,454.30 = 246,225.78 : x
  2. Step 2: Convert to fraction form
    447,429.78/617,454.30 = 246,225.78/x
  3. Step 3: Cross multiply
    447,429.78x = 617,454.30 × 246,225.78
  4. Step 4: Simplify right side
    447,429.78x = 152,033,166,631.85
  5. Step 5: Solve for x
    x = 152,033,166,631.85/447,429.78
  6. Step 6: Final answer
    x = 339,792.24

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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.