Home / 1,022.46-1,411.11-580.28

Finding the Fourth Proportional to 1,022.46, 1,411.11 and 580.28

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Solution

The fourth proportional to 1,022.46, 1,411.11 and 580.28 is: 800.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.46 : 1,411.11 = 580.28 : x
  2. Step 2: Convert to fraction form
    1,022.46/1,411.11 = 580.28/x
  3. Step 3: Cross multiply
    1,022.46x = 1,411.11 × 580.28
  4. Step 4: Simplify right side
    1,022.46x = 818,831.86
  5. Step 5: Solve for x
    x = 818,831.86/1,022.46
  6. Step 6: Final answer
    x = 800.84

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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.