Home / 1,378,873.60-2,068,310.40-381,601.60

Finding the Fourth Proportional to 1,378,873.60, 2,068,310.40 and 381,601.60

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Solution

The fourth proportional to 1,378,873.60, 2,068,310.40 and 381,601.60 is: 572,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,873.60 : 2,068,310.40 = 381,601.60 : x
  2. Step 2: Convert to fraction form
    1,378,873.60/2,068,310.40 = 381,601.60/x
  3. Step 3: Cross multiply
    1,378,873.60x = 2,068,310.40 × 381,601.60
  4. Step 4: Simplify right side
    1,378,873.60x = 789,270,557,936.64
  5. Step 5: Solve for x
    x = 789,270,557,936.64/1,378,873.60
  6. Step 6: Final answer
    x = 572,402.40

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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.