Home / 1,222.99-1,831.76-605.36

Finding the Fourth Proportional to 1,222.99, 1,831.76 and 605.36

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Solution

The fourth proportional to 1,222.99, 1,831.76 and 605.36 is: 906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.99 : 1,831.76 = 605.36 : x
  2. Step 2: Convert to fraction form
    1,222.99/1,831.76 = 605.36/x
  3. Step 3: Cross multiply
    1,222.99x = 1,831.76 × 605.36
  4. Step 4: Simplify right side
    1,222.99x = 1,108,874.23
  5. Step 5: Solve for x
    x = 1,108,874.23/1,222.99
  6. Step 6: Final answer
    x = 906.69

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1.5x scale

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.