Home / 1,127,438.80-1,555,929.11-668,824.90

Finding the Fourth Proportional to 1,127,438.80, 1,555,929.11 and 668,824.90

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Solution

The fourth proportional to 1,127,438.80, 1,555,929.11 and 668,824.90 is: 923,016.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,438.80 : 1,555,929.11 = 668,824.90 : x
  2. Step 2: Convert to fraction form
    1,127,438.80/1,555,929.11 = 668,824.90/x
  3. Step 3: Cross multiply
    1,127,438.80x = 1,555,929.11 × 668,824.90
  4. Step 4: Simplify right side
    1,127,438.80x = 1,040,644,131,402.84
  5. Step 5: Solve for x
    x = 1,040,644,131,402.84/1,127,438.80
  6. Step 6: Final answer
    x = 923,016.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.