Home / 1,478.12-2,217.49-504.14

Finding the Fourth Proportional to 1,478.12, 2,217.49 and 504.14

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Solution

The fourth proportional to 1,478.12, 2,217.49 and 504.14 is: 756.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.12 : 2,217.49 = 504.14 : x
  2. Step 2: Convert to fraction form
    1,478.12/2,217.49 = 504.14/x
  3. Step 3: Cross multiply
    1,478.12x = 2,217.49 × 504.14
  4. Step 4: Simplify right side
    1,478.12x = 1,117,913.06
  5. Step 5: Solve for x
    x = 1,117,913.06/1,478.12
  6. Step 6: Final answer
    x = 756.31

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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.