Home / 1,271,164.39-1,906,749.72-311,624.21

Finding the Fourth Proportional to 1,271,164.39, 1,906,749.72 and 311,624.21

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Solution

The fourth proportional to 1,271,164.39, 1,906,749.72 and 311,624.21 is: 467,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,164.39 : 1,906,749.72 = 311,624.21 : x
  2. Step 2: Convert to fraction form
    1,271,164.39/1,906,749.72 = 311,624.21/x
  3. Step 3: Cross multiply
    1,271,164.39x = 1,906,749.72 × 311,624.21
  4. Step 4: Simplify right side
    1,271,164.39x = 594,189,379,929.60
  5. Step 5: Solve for x
    x = 594,189,379,929.60/1,271,164.39
  6. Step 6: Final answer
    x = 467,437.09

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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.