Home / 1,019.13-1,529.20-403.27

Finding the Fourth Proportional to 1,019.13, 1,529.20 and 403.27

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Solution

The fourth proportional to 1,019.13, 1,529.20 and 403.27 is: 605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019.13 : 1,529.20 = 403.27 : x
  2. Step 2: Convert to fraction form
    1,019.13/1,529.20 = 403.27/x
  3. Step 3: Cross multiply
    1,019.13x = 1,529.20 × 403.27
  4. Step 4: Simplify right side
    1,019.13x = 616,683.50
  5. Step 5: Solve for x
    x = 616,683.50/1,019.13
  6. Step 6: Final answer
    x = 605.11

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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.