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Finding the Fourth Proportional to 475,812.45, 656,450.87 and 271,716.21

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Solution

The fourth proportional to 475,812.45, 656,450.87 and 271,716.21 is: 374,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,812.45 : 656,450.87 = 271,716.21 : x
  2. Step 2: Convert to fraction form
    475,812.45/656,450.87 = 271,716.21/x
  3. Step 3: Cross multiply
    475,812.45x = 656,450.87 × 271,716.21
  4. Step 4: Simplify right side
    475,812.45x = 178,368,341,089.02
  5. Step 5: Solve for x
    x = 178,368,341,089.02/475,812.45
  6. Step 6: Final answer
    x = 374,871.11

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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.