Home / 1,120,028.28-1,680,039.20-278,580.02

Finding the Fourth Proportional to 1,120,028.28, 1,680,039.20 and 278,580.02

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Solution

The fourth proportional to 1,120,028.28, 1,680,039.20 and 278,580.02 is: 417,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,028.28 : 1,680,039.20 = 278,580.02 : x
  2. Step 2: Convert to fraction form
    1,120,028.28/1,680,039.20 = 278,580.02/x
  3. Step 3: Cross multiply
    1,120,028.28x = 1,680,039.20 × 278,580.02
  4. Step 4: Simplify right side
    1,120,028.28x = 468,025,353,936.78
  5. Step 5: Solve for x
    x = 468,025,353,936.78/1,120,028.28
  6. Step 6: Final answer
    x = 417,869.23

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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.