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Finding the Fourth Proportional to 420,192.44, 629,763.72 and 270,033.08

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Solution

The fourth proportional to 420,192.44, 629,763.72 and 270,033.08 is: 404,712.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,192.44 : 629,763.72 = 270,033.08 : x
  2. Step 2: Convert to fraction form
    420,192.44/629,763.72 = 270,033.08/x
  3. Step 3: Cross multiply
    420,192.44x = 629,763.72 × 270,033.08
  4. Step 4: Simplify right side
    420,192.44x = 170,057,036,983.86
  5. Step 5: Solve for x
    x = 170,057,036,983.86/420,192.44
  6. Step 6: Final answer
    x = 404,712.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.