Home / 787,909.11-1,181,765.04-219,332.85

Finding the Fourth Proportional to 787,909.11, 1,181,765.04 and 219,332.85

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Solution

The fourth proportional to 787,909.11, 1,181,765.04 and 219,332.85 is: 328,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,909.11 : 1,181,765.04 = 219,332.85 : x
  2. Step 2: Convert to fraction form
    787,909.11/1,181,765.04 = 219,332.85/x
  3. Step 3: Cross multiply
    787,909.11x = 1,181,765.04 × 219,332.85
  4. Step 4: Simplify right side
    787,909.11x = 259,199,894,253.56
  5. Step 5: Solve for x
    x = 259,199,894,253.56/787,909.11
  6. Step 6: Final answer
    x = 328,971.82

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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.