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Finding the Fourth Proportional to 504,917.28, 757,272.24 and 189,367.20

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Solution

The fourth proportional to 504,917.28, 757,272.24 and 189,367.20 is: 284,011.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,917.28 : 757,272.24 = 189,367.20 : x
  2. Step 2: Convert to fraction form
    504,917.28/757,272.24 = 189,367.20/x
  3. Step 3: Cross multiply
    504,917.28x = 757,272.24 × 189,367.20
  4. Step 4: Simplify right side
    504,917.28x = 143,402,523,726.53
  5. Step 5: Solve for x
    x = 143,402,523,726.53/504,917.28
  6. Step 6: Final answer
    x = 284,011.92

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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.