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Finding the Fourth Proportional to 556,795.53, 768,369.83 and 327,379.23

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Solution

The fourth proportional to 556,795.53, 768,369.83 and 327,379.23 is: 451,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,795.53 : 768,369.83 = 327,379.23 : x
  2. Step 2: Convert to fraction form
    556,795.53/768,369.83 = 327,379.23/x
  3. Step 3: Cross multiply
    556,795.53x = 768,369.83 × 327,379.23
  4. Step 4: Simplify right side
    556,795.53x = 251,548,321,663.74
  5. Step 5: Solve for x
    x = 251,548,321,663.74/556,795.53
  6. Step 6: Final answer
    x = 451,778.63

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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.