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Finding the Fourth Proportional to 677,879.48, 936,711.36 and 493,797.56

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Solution

The fourth proportional to 677,879.48, 936,711.36 and 493,797.56 is: 682,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,879.48 : 936,711.36 = 493,797.56 : x
  2. Step 2: Convert to fraction form
    677,879.48/936,711.36 = 493,797.56/x
  3. Step 3: Cross multiply
    677,879.48x = 936,711.36 × 493,797.56
  4. Step 4: Simplify right side
    677,879.48x = 462,545,783,992.28
  5. Step 5: Solve for x
    x = 462,545,783,992.28/677,879.48
  6. Step 6: Final answer
    x = 682,342.21

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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.