Home / 1,211,747.80-1,817,621.70-412,958.20

Finding the Fourth Proportional to 1,211,747.80, 1,817,621.70 and 412,958.20

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Solution

The fourth proportional to 1,211,747.80, 1,817,621.70 and 412,958.20 is: 619,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,747.80 : 1,817,621.70 = 412,958.20 : x
  2. Step 2: Convert to fraction form
    1,211,747.80/1,817,621.70 = 412,958.20/x
  3. Step 3: Cross multiply
    1,211,747.80x = 1,817,621.70 × 412,958.20
  4. Step 4: Simplify right side
    1,211,747.80x = 750,601,785,512.94
  5. Step 5: Solve for x
    x = 750,601,785,512.94/1,211,747.80
  6. Step 6: Final answer
    x = 619,437.30

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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.