Home / 821,787.99-1,134,046.31-459,214.83

Finding the Fourth Proportional to 821,787.99, 1,134,046.31 and 459,214.83

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Solution

The fourth proportional to 821,787.99, 1,134,046.31 and 459,214.83 is: 633,704.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,787.99 : 1,134,046.31 = 459,214.83 : x
  2. Step 2: Convert to fraction form
    821,787.99/1,134,046.31 = 459,214.83/x
  3. Step 3: Cross multiply
    821,787.99x = 1,134,046.31 × 459,214.83
  4. Step 4: Simplify right side
    821,787.99x = 520,770,883,458.78
  5. Step 5: Solve for x
    x = 520,770,883,458.78/821,787.99
  6. Step 6: Final answer
    x = 633,704.67

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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.