Home / 684,517.68-1,026,778.23-279,709.86

Finding the Fourth Proportional to 684,517.68, 1,026,778.23 and 279,709.86

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Solution

The fourth proportional to 684,517.68, 1,026,778.23 and 279,709.86 is: 419,565.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,517.68 : 1,026,778.23 = 279,709.86 : x
  2. Step 2: Convert to fraction form
    684,517.68/1,026,778.23 = 279,709.86/x
  3. Step 3: Cross multiply
    684,517.68x = 1,026,778.23 × 279,709.86
  4. Step 4: Simplify right side
    684,517.68x = 287,199,994,964.35
  5. Step 5: Solve for x
    x = 287,199,994,964.35/684,517.68
  6. Step 6: Final answer
    x = 419,565.49

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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.