Home / 500,911.75-691,258.35-274,571.83

Finding the Fourth Proportional to 500,911.75, 691,258.35 and 274,571.83

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Solution

The fourth proportional to 500,911.75, 691,258.35 and 274,571.83 is: 378,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,911.75 : 691,258.35 = 274,571.83 : x
  2. Step 2: Convert to fraction form
    500,911.75/691,258.35 = 274,571.83/x
  3. Step 3: Cross multiply
    500,911.75x = 691,258.35 × 274,571.83
  4. Step 4: Simplify right side
    500,911.75x = 189,800,070,162.28
  5. Step 5: Solve for x
    x = 189,800,070,162.28/500,911.75
  6. Step 6: Final answer
    x = 378,909.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.