Home / 1,300,102.65-1,794,131.37-727,142.40

Finding the Fourth Proportional to 1,300,102.65, 1,794,131.37 and 727,142.40

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Solution

The fourth proportional to 1,300,102.65, 1,794,131.37 and 727,142.40 is: 1,003,450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,102.65 : 1,794,131.37 = 727,142.40 : x
  2. Step 2: Convert to fraction form
    1,300,102.65/1,794,131.37 = 727,142.40/x
  3. Step 3: Cross multiply
    1,300,102.65x = 1,794,131.37 × 727,142.40
  4. Step 4: Simplify right side
    1,300,102.65x = 1,304,588,990,297.09
  5. Step 5: Solve for x
    x = 1,304,588,990,297.09/1,300,102.65
  6. Step 6: Final answer
    x = 1,003,450.76

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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.