Home / 790,758.75-1,091,245.52-428,181.49

Finding the Fourth Proportional to 790,758.75, 1,091,245.52 and 428,181.49

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Solution

The fourth proportional to 790,758.75, 1,091,245.52 and 428,181.49 is: 590,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,758.75 : 1,091,245.52 = 428,181.49 : x
  2. Step 2: Convert to fraction form
    790,758.75/1,091,245.52 = 428,181.49/x
  3. Step 3: Cross multiply
    790,758.75x = 1,091,245.52 × 428,181.49
  4. Step 4: Simplify right side
    790,758.75x = 467,251,127,840.40
  5. Step 5: Solve for x
    x = 467,251,127,840.40/790,758.75
  6. Step 6: Final answer
    x = 590,889.61

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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.