Home / 1,127,438.30-1,555,928.42-668,824.40

Finding the Fourth Proportional to 1,127,438.30, 1,555,928.42 and 668,824.40

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Solution

The fourth proportional to 1,127,438.30, 1,555,928.42 and 668,824.40 is: 923,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,438.30 : 1,555,928.42 = 668,824.40 : x
  2. Step 2: Convert to fraction form
    1,127,438.30/1,555,928.42 = 668,824.40/x
  3. Step 3: Cross multiply
    1,127,438.30x = 1,555,928.42 × 668,824.40
  4. Step 4: Simplify right side
    1,127,438.30x = 1,040,642,891,949.45
  5. Step 5: Solve for x
    x = 1,040,642,891,949.45/1,127,438.30
  6. Step 6: Final answer
    x = 923,015.38

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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.