Home / 946,761.28-1,419,835.20-315,505.60

Finding the Fourth Proportional to 946,761.28, 1,419,835.20 and 315,505.60

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Solution

The fourth proportional to 946,761.28, 1,419,835.20 and 315,505.60 is: 473,156.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,761.28 : 1,419,835.20 = 315,505.60 : x
  2. Step 2: Convert to fraction form
    946,761.28/1,419,835.20 = 315,505.60/x
  3. Step 3: Cross multiply
    946,761.28x = 1,419,835.20 × 315,505.60
  4. Step 4: Simplify right side
    946,761.28x = 447,965,956,677.12
  5. Step 5: Solve for x
    x = 447,965,956,677.12/946,761.28
  6. Step 6: Final answer
    x = 473,156.19

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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.