Home / 1,615,601.28-2,420,744.58-1,280,793.72

Finding the Fourth Proportional to 1,615,601.28, 2,420,744.58 and 1,280,793.72

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Solution

The fourth proportional to 1,615,601.28, 2,420,744.58 and 1,280,793.72 is: 1,919,083.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,601.28 : 2,420,744.58 = 1,280,793.72 : x
  2. Step 2: Convert to fraction form
    1,615,601.28/2,420,744.58 = 1,280,793.72/x
  3. Step 3: Cross multiply
    1,615,601.28x = 2,420,744.58 × 1,280,793.72
  4. Step 4: Simplify right side
    1,615,601.28x = 3,100,474,455,788.04
  5. Step 5: Solve for x
    x = 3,100,474,455,788.04/1,615,601.28
  6. Step 6: Final answer
    x = 1,919,083.93

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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.