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Finding the Fourth Proportional to 484,764.85, 727,183.73 and 129,771.01

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Solution

The fourth proportional to 484,764.85, 727,183.73 and 129,771.01 is: 194,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,764.85 : 727,183.73 = 129,771.01 : x
  2. Step 2: Convert to fraction form
    484,764.85/727,183.73 = 129,771.01/x
  3. Step 3: Cross multiply
    484,764.85x = 727,183.73 × 129,771.01
  4. Step 4: Simplify right side
    484,764.85x = 94,367,367,097.67
  5. Step 5: Solve for x
    x = 94,367,367,097.67/484,764.85
  6. Step 6: Final answer
    x = 194,666.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.