Home / 3,828,427.20-5,742,640.80-1,555,040.70

Finding the Fourth Proportional to 3,828,427.20, 5,742,640.80 and 1,555,040.70

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Solution

The fourth proportional to 3,828,427.20, 5,742,640.80 and 1,555,040.70 is: 2,332,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828,427.20 : 5,742,640.80 = 1,555,040.70 : x
  2. Step 2: Convert to fraction form
    3,828,427.20/5,742,640.80 = 1,555,040.70/x
  3. Step 3: Cross multiply
    3,828,427.20x = 5,742,640.80 × 1,555,040.70
  4. Step 4: Simplify right side
    3,828,427.20x = 8,930,040,169,480.56
  5. Step 5: Solve for x
    x = 8,930,040,169,480.56/3,828,427.20
  6. Step 6: Final answer
    x = 2,332,561.05

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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.