Home / 1,497.26-2,245.08-509.78

Finding the Fourth Proportional to 1,497.26, 2,245.08 and 509.78

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Solution

The fourth proportional to 1,497.26, 2,245.08 and 509.78 is: 764.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.26 : 2,245.08 = 509.78 : x
  2. Step 2: Convert to fraction form
    1,497.26/2,245.08 = 509.78/x
  3. Step 3: Cross multiply
    1,497.26x = 2,245.08 × 509.78
  4. Step 4: Simplify right side
    1,497.26x = 1,144,496.88
  5. Step 5: Solve for x
    x = 1,144,496.88/1,497.26
  6. Step 6: Final answer
    x = 764.39

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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.