Home / 2,155,606.80-2,974,758.12-1,188,771.36

Finding the Fourth Proportional to 2,155,606.80, 2,974,758.12 and 1,188,771.36

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Solution

The fourth proportional to 2,155,606.80, 2,974,758.12 and 1,188,771.36 is: 1,640,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,606.80 : 2,974,758.12 = 1,188,771.36 : x
  2. Step 2: Convert to fraction form
    2,155,606.80/2,974,758.12 = 1,188,771.36/x
  3. Step 3: Cross multiply
    2,155,606.80x = 2,974,758.12 × 1,188,771.36
  4. Step 4: Simplify right side
    2,155,606.80x = 3,536,307,255,983.44
  5. Step 5: Solve for x
    x = 3,536,307,255,983.44/2,155,606.80
  6. Step 6: Final answer
    x = 1,640,515.91

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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.