Home / 859,634.85-1,289,452.28-228,612.45

Finding the Fourth Proportional to 859,634.85, 1,289,452.28 and 228,612.45

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Solution

The fourth proportional to 859,634.85, 1,289,452.28 and 228,612.45 is: 342,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,634.85 : 1,289,452.28 = 228,612.45 : x
  2. Step 2: Convert to fraction form
    859,634.85/1,289,452.28 = 228,612.45/x
  3. Step 3: Cross multiply
    859,634.85x = 1,289,452.28 × 228,612.45
  4. Step 4: Simplify right side
    859,634.85x = 294,784,843,745.82
  5. Step 5: Solve for x
    x = 294,784,843,745.82/859,634.85
  6. Step 6: Final answer
    x = 342,918.68

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Similar ratio
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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.