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Finding the Fourth Proportional to 517,992.86, 776,785.08 and 251,674.58

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Solution

The fourth proportional to 517,992.86, 776,785.08 and 251,674.58 is: 377,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,992.86 : 776,785.08 = 251,674.58 : x
  2. Step 2: Convert to fraction form
    517,992.86/776,785.08 = 251,674.58/x
  3. Step 3: Cross multiply
    517,992.86x = 776,785.08 × 251,674.58
  4. Step 4: Simplify right side
    517,992.86x = 195,497,058,759.27
  5. Step 5: Solve for x
    x = 195,497,058,759.27/517,992.86
  6. Step 6: Final answer
    x = 377,412.65

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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.