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Finding the Fourth Proportional to 500,808.96, 691,113.60 and 274,446.72

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Solution

The fourth proportional to 500,808.96, 691,113.60 and 274,446.72 is: 378,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,808.96 : 691,113.60 = 274,446.72 : x
  2. Step 2: Convert to fraction form
    500,808.96/691,113.60 = 274,446.72/x
  3. Step 3: Cross multiply
    500,808.96x = 691,113.60 × 274,446.72
  4. Step 4: Simplify right side
    500,808.96x = 189,673,860,667.39
  5. Step 5: Solve for x
    x = 189,673,860,667.39/500,808.96
  6. Step 6: Final answer
    x = 378,734.96

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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.