Home / 680,879.25-1,021,226.93-281,464.62

Finding the Fourth Proportional to 680,879.25, 1,021,226.93 and 281,464.62

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Solution

The fourth proportional to 680,879.25, 1,021,226.93 and 281,464.62 is: 422,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,879.25 : 1,021,226.93 = 281,464.62 : x
  2. Step 2: Convert to fraction form
    680,879.25/1,021,226.93 = 281,464.62/x
  3. Step 3: Cross multiply
    680,879.25x = 1,021,226.93 × 281,464.62
  4. Step 4: Simplify right side
    680,879.25x = 287,439,248,378.89
  5. Step 5: Solve for x
    x = 287,439,248,378.89/680,879.25
  6. Step 6: Final answer
    x = 422,158.92

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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.