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Finding the Fourth Proportional to 534,449.27, 737,334.79 and 305,019.30

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Solution

The fourth proportional to 534,449.27, 737,334.79 and 305,019.30 is: 420,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,449.27 : 737,334.79 = 305,019.30 : x
  2. Step 2: Convert to fraction form
    534,449.27/737,334.79 = 305,019.30/x
  3. Step 3: Cross multiply
    534,449.27x = 737,334.79 × 305,019.30
  4. Step 4: Simplify right side
    534,449.27x = 224,901,336,299.68
  5. Step 5: Solve for x
    x = 224,901,336,299.68/534,449.27
  6. Step 6: Final answer
    x = 420,809.52

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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.