Home / 840,622.39-1,260,840.14-300,856.87

Finding the Fourth Proportional to 840,622.39, 1,260,840.14 and 300,856.87

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Solution

The fourth proportional to 840,622.39, 1,260,840.14 and 300,856.87 is: 451,251.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,622.39 : 1,260,840.14 = 300,856.87 : x
  2. Step 2: Convert to fraction form
    840,622.39/1,260,840.14 = 300,856.87/x
  3. Step 3: Cross multiply
    840,622.39x = 1,260,840.14 × 300,856.87
  4. Step 4: Simplify right side
    840,622.39x = 379,332,418,090.76
  5. Step 5: Solve for x
    x = 379,332,418,090.76/840,622.39
  6. Step 6: Final answer
    x = 451,251.86

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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.