Home / 996,428.20-1,494,836.70-427,808.20

Finding the Fourth Proportional to 996,428.20, 1,494,836.70 and 427,808.20

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Solution

The fourth proportional to 996,428.20, 1,494,836.70 and 427,808.20 is: 641,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,428.20 : 1,494,836.70 = 427,808.20 : x
  2. Step 2: Convert to fraction form
    996,428.20/1,494,836.70 = 427,808.20/x
  3. Step 3: Cross multiply
    996,428.20x = 1,494,836.70 × 427,808.20
  4. Step 4: Simplify right side
    996,428.20x = 639,503,397,920.94
  5. Step 5: Solve for x
    x = 639,503,397,920.94/996,428.20
  6. Step 6: Final answer
    x = 641,795.76

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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.