Home / 787,911.12-1,181,768.04-219,334.86

Finding the Fourth Proportional to 787,911.12, 1,181,768.04 and 219,334.86

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Solution

The fourth proportional to 787,911.12, 1,181,768.04 and 219,334.86 is: 328,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,911.12 : 1,181,768.04 = 219,334.86 : x
  2. Step 2: Convert to fraction form
    787,911.12/1,181,768.04 = 219,334.86/x
  3. Step 3: Cross multiply
    787,911.12x = 1,181,768.04 × 219,334.86
  4. Step 4: Simplify right side
    787,911.12x = 259,202,927,605.87
  5. Step 5: Solve for x
    x = 259,202,927,605.87/787,911.12
  6. Step 6: Final answer
    x = 328,974.83

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1.5x scale

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.