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Finding the Fourth Proportional to 512,188.16, 768,552.96 and 363,390.08

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Solution

The fourth proportional to 512,188.16, 768,552.96 and 363,390.08 is: 545,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,188.16 : 768,552.96 = 363,390.08 : x
  2. Step 2: Convert to fraction form
    512,188.16/768,552.96 = 363,390.08/x
  3. Step 3: Cross multiply
    512,188.16x = 768,552.96 × 363,390.08
  4. Step 4: Simplify right side
    512,188.16x = 279,284,521,618.64
  5. Step 5: Solve for x
    x = 279,284,521,618.64/512,188.16
  6. Step 6: Final answer
    x = 545,277.19

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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.