Home / 525.24-721.79-501.15

Finding the Fourth Proportional to 525.24, 721.79 and 501.15

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Solution

The fourth proportional to 525.24, 721.79 and 501.15 is: 688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.24 : 721.79 = 501.15 : x
  2. Step 2: Convert to fraction form
    525.24/721.79 = 501.15/x
  3. Step 3: Cross multiply
    525.24x = 721.79 × 501.15
  4. Step 4: Simplify right side
    525.24x = 361,722.55
  5. Step 5: Solve for x
    x = 361,722.55/525.24
  6. Step 6: Final answer
    x = 688.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.