Home / 1,338,107.72-2,007,555.34-538,977.88

Finding the Fourth Proportional to 1,338,107.72, 2,007,555.34 and 538,977.88

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Solution

The fourth proportional to 1,338,107.72, 2,007,555.34 and 538,977.88 is: 808,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,107.72 : 2,007,555.34 = 538,977.88 : x
  2. Step 2: Convert to fraction form
    1,338,107.72/2,007,555.34 = 538,977.88/x
  3. Step 3: Cross multiply
    1,338,107.72x = 2,007,555.34 × 538,977.88
  4. Step 4: Simplify right side
    1,338,107.72x = 1,082,027,921,135.88
  5. Step 5: Solve for x
    x = 1,082,027,921,135.88/1,338,107.72
  6. Step 6: Final answer
    x = 808,625.42

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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.