Home / 790,942.18-1,091,499.26-428,365.82

Finding the Fourth Proportional to 790,942.18, 1,091,499.26 and 428,365.82

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Solution

The fourth proportional to 790,942.18, 1,091,499.26 and 428,365.82 is: 591,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,942.18 : 1,091,499.26 = 428,365.82 : x
  2. Step 2: Convert to fraction form
    790,942.18/1,091,499.26 = 428,365.82/x
  3. Step 3: Cross multiply
    790,942.18x = 1,091,499.26 × 428,365.82
  4. Step 4: Simplify right side
    790,942.18x = 467,560,975,539.29
  5. Step 5: Solve for x
    x = 467,560,975,539.29/790,942.18
  6. Step 6: Final answer
    x = 591,144.32

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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.