Home / 840,023.87-1,260,033.42-208,937.69

Finding the Fourth Proportional to 840,023.87, 1,260,033.42 and 208,937.69

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Solution

The fourth proportional to 840,023.87, 1,260,033.42 and 208,937.69 is: 313,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,023.87 : 1,260,033.42 = 208,937.69 : x
  2. Step 2: Convert to fraction form
    840,023.87/1,260,033.42 = 208,937.69/x
  3. Step 3: Cross multiply
    840,023.87x = 1,260,033.42 × 208,937.69
  4. Step 4: Simplify right side
    840,023.87x = 263,268,465,797.43
  5. Step 5: Solve for x
    x = 263,268,465,797.43/840,023.87
  6. Step 6: Final answer
    x = 313,405.94

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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.