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Finding the Fourth Proportional to 1,499.28, 2,249.97 and 525.39

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Solution

The fourth proportional to 1,499.28, 2,249.97 and 525.39 is: 788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.28 : 2,249.97 = 525.39 : x
  2. Step 2: Convert to fraction form
    1,499.28/2,249.97 = 525.39/x
  3. Step 3: Cross multiply
    1,499.28x = 2,249.97 × 525.39
  4. Step 4: Simplify right side
    1,499.28x = 1,182,111.74
  5. Step 5: Solve for x
    x = 1,182,111.74/1,499.28
  6. Step 6: Final answer
    x = 788.45

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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.