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Finding the Fourth Proportional to 534,657.60, 737,799.27 and 305,205.75

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Solution

The fourth proportional to 534,657.60, 737,799.27 and 305,205.75 is: 421,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,657.60 : 737,799.27 = 305,205.75 : x
  2. Step 2: Convert to fraction form
    534,657.60/737,799.27 = 305,205.75/x
  3. Step 3: Cross multiply
    534,657.60x = 737,799.27 × 305,205.75
  4. Step 4: Simplify right side
    534,657.60x = 225,180,579,549.80
  5. Step 5: Solve for x
    x = 225,180,579,549.80/534,657.60
  6. Step 6: Final answer
    x = 421,167.83

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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.