Home / 1,310.45-1,965.80-444.56

Finding the Fourth Proportional to 1,310.45, 1,965.80 and 444.56

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Solution

The fourth proportional to 1,310.45, 1,965.80 and 444.56 is: 666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.45 : 1,965.80 = 444.56 : x
  2. Step 2: Convert to fraction form
    1,310.45/1,965.80 = 444.56/x
  3. Step 3: Cross multiply
    1,310.45x = 1,965.80 × 444.56
  4. Step 4: Simplify right side
    1,310.45x = 873,907.33
  5. Step 5: Solve for x
    x = 873,907.33/1,310.45
  6. Step 6: Final answer
    x = 666.88

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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.