Home / 1,211,540.52-1,817,310.78-412,410.72

Finding the Fourth Proportional to 1,211,540.52, 1,817,310.78 and 412,410.72

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Solution

The fourth proportional to 1,211,540.52, 1,817,310.78 and 412,410.72 is: 618,616.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,540.52 : 1,817,310.78 = 412,410.72 : x
  2. Step 2: Convert to fraction form
    1,211,540.52/1,817,310.78 = 412,410.72/x
  3. Step 3: Cross multiply
    1,211,540.52x = 1,817,310.78 × 412,410.72
  4. Step 4: Simplify right side
    1,211,540.52x = 749,478,447,243.56
  5. Step 5: Solve for x
    x = 749,478,447,243.56/1,211,540.52
  6. Step 6: Final answer
    x = 618,616.08

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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.