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Finding the Fourth Proportional to 483,305.08, 725,257 and 280,996.40

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Solution

The fourth proportional to 483,305.08, 725,257 and 280,996.40 is: 421,668.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,305.08 : 725,257 = 280,996.40 : x
  2. Step 2: Convert to fraction form
    483,305.08/725,257 = 280,996.40/x
  3. Step 3: Cross multiply
    483,305.08x = 725,257 × 280,996.40
  4. Step 4: Simplify right side
    483,305.08x = 203,794,606,074.80
  5. Step 5: Solve for x
    x = 203,794,606,074.80/483,305.08
  6. Step 6: Final answer
    x = 421,668.66

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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.