Home / 1,208,840.12-1,668,190.16-664,964.22

Finding the Fourth Proportional to 1,208,840.12, 1,668,190.16 and 664,964.22

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Solution

The fourth proportional to 1,208,840.12, 1,668,190.16 and 664,964.22 is: 917,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,840.12 : 1,668,190.16 = 664,964.22 : x
  2. Step 2: Convert to fraction form
    1,208,840.12/1,668,190.16 = 664,964.22/x
  3. Step 3: Cross multiply
    1,208,840.12x = 1,668,190.16 × 664,964.22
  4. Step 4: Simplify right side
    1,208,840.12x = 1,109,286,768,556.08
  5. Step 5: Solve for x
    x = 1,109,286,768,556.08/1,208,840.12
  6. Step 6: Final answer
    x = 917,645.56

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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.