Home / 1,207,502.80-1,668,054.72-1,143,729.88

Finding the Fourth Proportional to 1,207,502.80, 1,668,054.72 and 1,143,729.88

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Solution

The fourth proportional to 1,207,502.80, 1,668,054.72 and 1,143,729.88 is: 1,579,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,502.80 : 1,668,054.72 = 1,143,729.88 : x
  2. Step 2: Convert to fraction form
    1,207,502.80/1,668,054.72 = 1,143,729.88/x
  3. Step 3: Cross multiply
    1,207,502.80x = 1,668,054.72 × 1,143,729.88
  4. Step 4: Simplify right side
    1,207,502.80x = 1,907,804,024,739.03
  5. Step 5: Solve for x
    x = 1,907,804,024,739.03/1,207,502.80
  6. Step 6: Final answer
    x = 1,579,958.26

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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.