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Finding the Fourth Proportional to 500,890.80, 691,227.75 and 271,454.67

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Solution

The fourth proportional to 500,890.80, 691,227.75 and 271,454.67 is: 374,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,890.80 : 691,227.75 = 271,454.67 : x
  2. Step 2: Convert to fraction form
    500,890.80/691,227.75 = 271,454.67/x
  3. Step 3: Cross multiply
    500,890.80x = 691,227.75 × 271,454.67
  4. Step 4: Simplify right side
    500,890.80x = 187,637,000,771.09
  5. Step 5: Solve for x
    x = 187,637,000,771.09/500,890.80
  6. Step 6: Final answer
    x = 374,606.60

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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.