Home / 1,325,823.88-1,988,814.40-415,176.64

Finding the Fourth Proportional to 1,325,823.88, 1,988,814.40 and 415,176.64

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Solution

The fourth proportional to 1,325,823.88, 1,988,814.40 and 415,176.64 is: 622,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,823.88 : 1,988,814.40 = 415,176.64 : x
  2. Step 2: Convert to fraction form
    1,325,823.88/1,988,814.40 = 415,176.64/x
  3. Step 3: Cross multiply
    1,325,823.88x = 1,988,814.40 × 415,176.64
  4. Step 4: Simplify right side
    1,325,823.88x = 825,709,280,175.62
  5. Step 5: Solve for x
    x = 825,709,280,175.62/1,325,823.88
  6. Step 6: Final answer
    x = 622,789.57

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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.