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Finding the Fourth Proportional to 534,520.75, 737,650.52 and 305,073.45

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Solution

The fourth proportional to 534,520.75, 737,650.52 and 305,073.45 is: 421,008.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,520.75 : 737,650.52 = 305,073.45 : x
  2. Step 2: Convert to fraction form
    534,520.75/737,650.52 = 305,073.45/x
  3. Step 3: Cross multiply
    534,520.75x = 737,650.52 × 305,073.45
  4. Step 4: Simplify right side
    534,520.75x = 225,037,589,030.69
  5. Step 5: Solve for x
    x = 225,037,589,030.69/534,520.75
  6. Step 6: Final answer
    x = 421,008.14

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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.