Home / 1,099,286.40-1,647,969.60-425,827.20

Finding the Fourth Proportional to 1,099,286.40, 1,647,969.60 and 425,827.20

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Solution

The fourth proportional to 1,099,286.40, 1,647,969.60 and 425,827.20 is: 638,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,286.40 : 1,647,969.60 = 425,827.20 : x
  2. Step 2: Convert to fraction form
    1,099,286.40/1,647,969.60 = 425,827.20/x
  3. Step 3: Cross multiply
    1,099,286.40x = 1,647,969.60 × 425,827.20
  4. Step 4: Simplify right side
    1,099,286.40x = 701,750,280,453.12
  5. Step 5: Solve for x
    x = 701,750,280,453.12/1,099,286.40
  6. Step 6: Final answer
    x = 638,368.93

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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.