Home / 1,172,758.20-1,618,579.98-743,078.40

Finding the Fourth Proportional to 1,172,758.20, 1,618,579.98 and 743,078.40

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Solution

The fourth proportional to 1,172,758.20, 1,618,579.98 and 743,078.40 is: 1,025,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,758.20 : 1,618,579.98 = 743,078.40 : x
  2. Step 2: Convert to fraction form
    1,172,758.20/1,618,579.98 = 743,078.40/x
  3. Step 3: Cross multiply
    1,172,758.20x = 1,618,579.98 × 743,078.40
  4. Step 4: Simplify right side
    1,172,758.20x = 1,202,731,821,810.43
  5. Step 5: Solve for x
    x = 1,202,731,821,810.43/1,172,758.20
  6. Step 6: Final answer
    x = 1,025,558.23

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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.