Home / 1,268,828.20-1,903,229.34-427,374.28

Finding the Fourth Proportional to 1,268,828.20, 1,903,229.34 and 427,374.28

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Solution

The fourth proportional to 1,268,828.20, 1,903,229.34 and 427,374.28 is: 641,057.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,828.20 : 1,903,229.34 = 427,374.28 : x
  2. Step 2: Convert to fraction form
    1,268,828.20/1,903,229.34 = 427,374.28/x
  3. Step 3: Cross multiply
    1,268,828.20x = 1,903,229.34 × 427,374.28
  4. Step 4: Simplify right side
    1,268,828.20x = 813,391,268,857.38
  5. Step 5: Solve for x
    x = 813,391,268,857.38/1,268,828.20
  6. Step 6: Final answer
    x = 641,057.05

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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.