Home / 1,311,270.04-1,965,900.66-412,191.64

Finding the Fourth Proportional to 1,311,270.04, 1,965,900.66 and 412,191.64

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Solution

The fourth proportional to 1,311,270.04, 1,965,900.66 and 412,191.64 is: 617,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,270.04 : 1,965,900.66 = 412,191.64 : x
  2. Step 2: Convert to fraction form
    1,311,270.04/1,965,900.66 = 412,191.64/x
  3. Step 3: Cross multiply
    1,311,270.04x = 1,965,900.66 × 412,191.64
  4. Step 4: Simplify right side
    1,311,270.04x = 810,327,817,122.48
  5. Step 5: Solve for x
    x = 810,327,817,122.48/1,311,270.04
  6. Step 6: Final answer
    x = 617,971.73

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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.