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Finding the Fourth Proportional to 631,511.79, 946,629.27 and 271,917.15

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Solution

The fourth proportional to 631,511.79, 946,629.27 and 271,917.15 is: 407,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,511.79 : 946,629.27 = 271,917.15 : x
  2. Step 2: Convert to fraction form
    631,511.79/946,629.27 = 271,917.15/x
  3. Step 3: Cross multiply
    631,511.79x = 946,629.27 × 271,917.15
  4. Step 4: Simplify right side
    631,511.79x = 257,404,733,204.98
  5. Step 5: Solve for x
    x = 257,404,733,204.98/631,511.79
  6. Step 6: Final answer
    x = 407,600.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.