Home / 694.03-1,040.53-419.29

Finding the Fourth Proportional to 694.03, 1,040.53 and 419.29

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Solution

The fourth proportional to 694.03, 1,040.53 and 419.29 is: 628.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.03 : 1,040.53 = 419.29 : x
  2. Step 2: Convert to fraction form
    694.03/1,040.53 = 419.29/x
  3. Step 3: Cross multiply
    694.03x = 1,040.53 × 419.29
  4. Step 4: Simplify right side
    694.03x = 436,284.19
  5. Step 5: Solve for x
    x = 436,284.19/694.03
  6. Step 6: Final answer
    x = 628.62

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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.