Home / 1,479.15-2,217.20-554.06

Finding the Fourth Proportional to 1,479.15, 2,217.20 and 554.06

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Solution

The fourth proportional to 1,479.15, 2,217.20 and 554.06 is: 830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.15 : 2,217.20 = 554.06 : x
  2. Step 2: Convert to fraction form
    1,479.15/2,217.20 = 554.06/x
  3. Step 3: Cross multiply
    1,479.15x = 2,217.20 × 554.06
  4. Step 4: Simplify right side
    1,479.15x = 1,228,447.98
  5. Step 5: Solve for x
    x = 1,228,447.98/1,479.15
  6. Step 6: Final answer
    x = 830.51

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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.