Home / 1,380,831.20-2,072,024.40-539,273.60

Finding the Fourth Proportional to 1,380,831.20, 2,072,024.40 and 539,273.60

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Solution

The fourth proportional to 1,380,831.20, 2,072,024.40 and 539,273.60 is: 809,214.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,831.20 : 2,072,024.40 = 539,273.60 : x
  2. Step 2: Convert to fraction form
    1,380,831.20/2,072,024.40 = 539,273.60/x
  3. Step 3: Cross multiply
    1,380,831.20x = 2,072,024.40 × 539,273.60
  4. Step 4: Simplify right side
    1,380,831.20x = 1,117,388,057,475.84
  5. Step 5: Solve for x
    x = 1,117,388,057,475.84/1,380,831.20
  6. Step 6: Final answer
    x = 809,214.09

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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.