Home / 787,710.62-1,181,813.78-281,926.76

Finding the Fourth Proportional to 787,710.62, 1,181,813.78 and 281,926.76

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Solution

The fourth proportional to 787,710.62, 1,181,813.78 and 281,926.76 is: 422,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,710.62 : 1,181,813.78 = 281,926.76 : x
  2. Step 2: Convert to fraction form
    787,710.62/1,181,813.78 = 281,926.76/x
  3. Step 3: Cross multiply
    787,710.62x = 1,181,813.78 × 281,926.76
  4. Step 4: Simplify right side
    787,710.62x = 333,184,929,918.75
  5. Step 5: Solve for x
    x = 333,184,929,918.75/787,710.62
  6. Step 6: Final answer
    x = 422,978.85

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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.