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Finding the Fourth Proportional to 491,174.55, 677,813.67 and 276,314.76

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Solution

The fourth proportional to 491,174.55, 677,813.67 and 276,314.76 is: 381,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,174.55 : 677,813.67 = 276,314.76 : x
  2. Step 2: Convert to fraction form
    491,174.55/677,813.67 = 276,314.76/x
  3. Step 3: Cross multiply
    491,174.55x = 677,813.67 × 276,314.76
  4. Step 4: Simplify right side
    491,174.55x = 187,289,921,550.77
  5. Step 5: Solve for x
    x = 187,289,921,550.77/491,174.55
  6. Step 6: Final answer
    x = 381,310.31

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1.5x scale

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.