Home / 790,900.26-1,186,104.90-285,395.64

Finding the Fourth Proportional to 790,900.26, 1,186,104.90 and 285,395.64

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Solution

The fourth proportional to 790,900.26, 1,186,104.90 and 285,395.64 is: 428,004.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,900.26 : 1,186,104.90 = 285,395.64 : x
  2. Step 2: Convert to fraction form
    790,900.26/1,186,104.90 = 285,395.64/x
  3. Step 3: Cross multiply
    790,900.26x = 1,186,104.90 × 285,395.64
  4. Step 4: Simplify right side
    790,900.26x = 338,509,167,042.64
  5. Step 5: Solve for x
    x = 338,509,167,042.64/790,900.26
  6. Step 6: Final answer
    x = 428,004.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.