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Finding the Fourth Proportional to 534,449.89, 737,335.65 and 305,019.92

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Solution

The fourth proportional to 534,449.89, 737,335.65 and 305,019.92 is: 420,810.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,449.89 : 737,335.65 = 305,019.92 : x
  2. Step 2: Convert to fraction form
    534,449.89/737,335.65 = 305,019.92/x
  3. Step 3: Cross multiply
    534,449.89x = 737,335.65 × 305,019.92
  4. Step 4: Simplify right side
    534,449.89x = 224,902,060,976.15
  5. Step 5: Solve for x
    x = 224,902,060,976.15/534,449.89
  6. Step 6: Final answer
    x = 420,810.38

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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.