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Finding the Fourth Proportional to 417,630.12, 625,555.79 and 204,069.57

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Solution

The fourth proportional to 417,630.12, 625,555.79 and 204,069.57 is: 305,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,630.12 : 625,555.79 = 204,069.57 : x
  2. Step 2: Convert to fraction form
    417,630.12/625,555.79 = 204,069.57/x
  3. Step 3: Cross multiply
    417,630.12x = 625,555.79 × 204,069.57
  4. Step 4: Simplify right side
    417,630.12x = 127,656,901,076.31
  5. Step 5: Solve for x
    x = 127,656,901,076.31/417,630.12
  6. Step 6: Final answer
    x = 305,669.77

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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.