Home / 1,209,789.80-1,669,668.90-693,745.64

Finding the Fourth Proportional to 1,209,789.80, 1,669,668.90 and 693,745.64

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Solution

The fourth proportional to 1,209,789.80, 1,669,668.90 and 693,745.64 is: 957,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,789.80 : 1,669,668.90 = 693,745.64 : x
  2. Step 2: Convert to fraction form
    1,209,789.80/1,669,668.90 = 693,745.64/x
  3. Step 3: Cross multiply
    1,209,789.80x = 1,669,668.90 × 693,745.64
  4. Step 4: Simplify right side
    1,209,789.80x = 1,158,325,519,618.60
  5. Step 5: Solve for x
    x = 1,158,325,519,618.60/1,209,789.80
  6. Step 6: Final answer
    x = 957,460.15

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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.