Home / 1,191,742.12-1,787,629.74-660,301.12

Finding the Fourth Proportional to 1,191,742.12, 1,787,629.74 and 660,301.12

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Solution

The fourth proportional to 1,191,742.12, 1,787,629.74 and 660,301.12 is: 990,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,742.12 : 1,787,629.74 = 660,301.12 : x
  2. Step 2: Convert to fraction form
    1,191,742.12/1,787,629.74 = 660,301.12/x
  3. Step 3: Cross multiply
    1,191,742.12x = 1,787,629.74 × 660,301.12
  4. Step 4: Simplify right side
    1,191,742.12x = 1,180,373,919,467.31
  5. Step 5: Solve for x
    x = 1,180,373,919,467.31/1,191,742.12
  6. Step 6: Final answer
    x = 990,460.86

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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.