Home / 1,032.24-1,423.69-717.50

Finding the Fourth Proportional to 1,032.24, 1,423.69 and 717.50

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Solution

The fourth proportional to 1,032.24, 1,423.69 and 717.50 is: 989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.24 : 1,423.69 = 717.50 : x
  2. Step 2: Convert to fraction form
    1,032.24/1,423.69 = 717.50/x
  3. Step 3: Cross multiply
    1,032.24x = 1,423.69 × 717.50
  4. Step 4: Simplify right side
    1,032.24x = 1,021,497.58
  5. Step 5: Solve for x
    x = 1,021,497.58/1,032.24
  6. Step 6: Final answer
    x = 989.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.