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Finding the Fourth Proportional to 1,017.84, 1,525.86 and 440.52

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Solution

The fourth proportional to 1,017.84, 1,525.86 and 440.52 is: 660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.84 : 1,525.86 = 440.52 : x
  2. Step 2: Convert to fraction form
    1,017.84/1,525.86 = 440.52/x
  3. Step 3: Cross multiply
    1,017.84x = 1,525.86 × 440.52
  4. Step 4: Simplify right side
    1,017.84x = 672,171.85
  5. Step 5: Solve for x
    x = 672,171.85/1,017.84
  6. Step 6: Final answer
    x = 660.39

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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.