Home / 790,656.27-1,091,104.07-428,080.43

Finding the Fourth Proportional to 790,656.27, 1,091,104.07 and 428,080.43

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Solution

The fourth proportional to 790,656.27, 1,091,104.07 and 428,080.43 is: 590,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,656.27 : 1,091,104.07 = 428,080.43 : x
  2. Step 2: Convert to fraction form
    790,656.27/1,091,104.07 = 428,080.43/x
  3. Step 3: Cross multiply
    790,656.27x = 1,091,104.07 × 428,080.43
  4. Step 4: Simplify right side
    790,656.27x = 467,080,291,864.43
  5. Step 5: Solve for x
    x = 467,080,291,864.43/790,656.27
  6. Step 6: Final answer
    x = 590,750.13

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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.