Home / 1,325,428.87-1,988,257.42-365,884.64

Finding the Fourth Proportional to 1,325,428.87, 1,988,257.42 and 365,884.64

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Solution

The fourth proportional to 1,325,428.87, 1,988,257.42 and 365,884.64 is: 548,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,428.87 : 1,988,257.42 = 365,884.64 : x
  2. Step 2: Convert to fraction form
    1,325,428.87/1,988,257.42 = 365,884.64/x
  3. Step 3: Cross multiply
    1,325,428.87x = 1,988,257.42 × 365,884.64
  4. Step 4: Simplify right side
    1,325,428.87x = 727,472,857,441.91
  5. Step 5: Solve for x
    x = 727,472,857,441.91/1,325,428.87
  6. Step 6: Final answer
    x = 548,858.47

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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.