Home / 405,028.20-606,959.10-180,204.60

Finding the Fourth Proportional to 405,028.20, 606,959.10 and 180,204.60

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Solution

The fourth proportional to 405,028.20, 606,959.10 and 180,204.60 is: 270,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,028.20 : 606,959.10 = 180,204.60 : x
  2. Step 2: Convert to fraction form
    405,028.20/606,959.10 = 180,204.60/x
  3. Step 3: Cross multiply
    405,028.20x = 606,959.10 × 180,204.60
  4. Step 4: Simplify right side
    405,028.20x = 109,376,821,831.86
  5. Step 5: Solve for x
    x = 109,376,821,831.86/405,028.20
  6. Step 6: Final answer
    x = 270,047.42

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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.