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Finding the Fourth Proportional to 504,621.08, 757,187.58 and 279,940.04

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Solution

The fourth proportional to 504,621.08, 757,187.58 and 279,940.04 is: 420,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,621.08 : 757,187.58 = 279,940.04 : x
  2. Step 2: Convert to fraction form
    504,621.08/757,187.58 = 279,940.04/x
  3. Step 3: Cross multiply
    504,621.08x = 757,187.58 × 279,940.04
  4. Step 4: Simplify right side
    504,621.08x = 211,967,121,432.70
  5. Step 5: Solve for x
    x = 211,967,121,432.70/504,621.08
  6. Step 6: Final answer
    x = 420,052.05

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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.