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Finding the Fourth Proportional to 548,589.02, 757,205.02 and 319,190.62

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Solution

The fourth proportional to 548,589.02, 757,205.02 and 319,190.62 is: 440,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,589.02 : 757,205.02 = 319,190.62 : x
  2. Step 2: Convert to fraction form
    548,589.02/757,205.02 = 319,190.62/x
  3. Step 3: Cross multiply
    548,589.02x = 757,205.02 × 319,190.62
  4. Step 4: Simplify right side
    548,589.02x = 241,692,737,109.92
  5. Step 5: Solve for x
    x = 241,692,737,109.92/548,589.02
  6. Step 6: Final answer
    x = 440,571.59

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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.