Home / 1,326,231.26-1,989,735.08-427,654.92

Finding the Fourth Proportional to 1,326,231.26, 1,989,735.08 and 427,654.92

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Solution

The fourth proportional to 1,326,231.26, 1,989,735.08 and 427,654.92 is: 641,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,231.26 : 1,989,735.08 = 427,654.92 : x
  2. Step 2: Convert to fraction form
    1,326,231.26/1,989,735.08 = 427,654.92/x
  3. Step 3: Cross multiply
    1,326,231.26x = 1,989,735.08 × 427,654.92
  4. Step 4: Simplify right side
    1,326,231.26x = 850,920,004,187.39
  5. Step 5: Solve for x
    x = 850,920,004,187.39/1,326,231.26
  6. Step 6: Final answer
    x = 641,607.56

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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.