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Finding the Fourth Proportional to 534,639.33, 737,620.61 and 305,031.69

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Solution

The fourth proportional to 534,639.33, 737,620.61 and 305,031.69 is: 420,840.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,639.33 : 737,620.61 = 305,031.69 : x
  2. Step 2: Convert to fraction form
    534,639.33/737,620.61 = 305,031.69/x
  3. Step 3: Cross multiply
    534,639.33x = 737,620.61 × 305,031.69
  4. Step 4: Simplify right side
    534,639.33x = 224,997,659,721.97
  5. Step 5: Solve for x
    x = 224,997,659,721.97/534,639.33
  6. Step 6: Final answer
    x = 420,840.08

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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.