Home / 1,190,578.10-1,643,027.40-646,713.72

Finding the Fourth Proportional to 1,190,578.10, 1,643,027.40 and 646,713.72

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Solution

The fourth proportional to 1,190,578.10, 1,643,027.40 and 646,713.72 is: 892,481.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,578.10 : 1,643,027.40 = 646,713.72 : x
  2. Step 2: Convert to fraction form
    1,190,578.10/1,643,027.40 = 646,713.72/x
  3. Step 3: Cross multiply
    1,190,578.10x = 1,643,027.40 × 646,713.72
  4. Step 4: Simplify right side
    1,190,578.10x = 1,062,568,361,915.93
  5. Step 5: Solve for x
    x = 1,062,568,361,915.93/1,190,578.10
  6. Step 6: Final answer
    x = 892,481.03

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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.