Home / 3,828,431.70-5,742,647.55-1,555,045.20

Finding the Fourth Proportional to 3,828,431.70, 5,742,647.55 and 1,555,045.20

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Solution

The fourth proportional to 3,828,431.70, 5,742,647.55 and 1,555,045.20 is: 2,332,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828,431.70 : 5,742,647.55 = 1,555,045.20 : x
  2. Step 2: Convert to fraction form
    3,828,431.70/5,742,647.55 = 1,555,045.20/x
  3. Step 3: Cross multiply
    3,828,431.70x = 5,742,647.55 × 1,555,045.20
  4. Step 4: Simplify right side
    3,828,431.70x = 8,930,076,507,919.26
  5. Step 5: Solve for x
    x = 8,930,076,507,919.26/3,828,431.70
  6. Step 6: Final answer
    x = 2,332,567.80

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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.