Home / 1,388,453.78-2,082,726.04-477,626.88

Finding the Fourth Proportional to 1,388,453.78, 2,082,726.04 and 477,626.88

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Solution

The fourth proportional to 1,388,453.78, 2,082,726.04 and 477,626.88 is: 716,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,453.78 : 2,082,726.04 = 477,626.88 : x
  2. Step 2: Convert to fraction form
    1,388,453.78/2,082,726.04 = 477,626.88/x
  3. Step 3: Cross multiply
    1,388,453.78x = 2,082,726.04 × 477,626.88
  4. Step 4: Simplify right side
    1,388,453.78x = 994,765,940,379.96
  5. Step 5: Solve for x
    x = 994,765,940,379.96/1,388,453.78
  6. Step 6: Final answer
    x = 716,455.93

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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.