Home / 1,098,528.40-1,647,792.60-388,579.60

Finding the Fourth Proportional to 1,098,528.40, 1,647,792.60 and 388,579.60

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Solution

The fourth proportional to 1,098,528.40, 1,647,792.60 and 388,579.60 is: 582,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,528.40 : 1,647,792.60 = 388,579.60 : x
  2. Step 2: Convert to fraction form
    1,098,528.40/1,647,792.60 = 388,579.60/x
  3. Step 3: Cross multiply
    1,098,528.40x = 1,647,792.60 × 388,579.60
  4. Step 4: Simplify right side
    1,098,528.40x = 640,298,589,390.96
  5. Step 5: Solve for x
    x = 640,298,589,390.96/1,098,528.40
  6. Step 6: Final answer
    x = 582,869.40

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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.