Home / 1,478.29-2,217.72-504.37

Finding the Fourth Proportional to 1,478.29, 2,217.72 and 504.37

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Solution

The fourth proportional to 1,478.29, 2,217.72 and 504.37 is: 756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.29 : 2,217.72 = 504.37 : x
  2. Step 2: Convert to fraction form
    1,478.29/2,217.72 = 504.37/x
  3. Step 3: Cross multiply
    1,478.29x = 2,217.72 × 504.37
  4. Step 4: Simplify right side
    1,478.29x = 1,118,551.44
  5. Step 5: Solve for x
    x = 1,118,551.44/1,478.29
  6. Step 6: Final answer
    x = 756.65

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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.