Home / 693,758.64-1,040,621.70-319,781.64

Finding the Fourth Proportional to 693,758.64, 1,040,621.70 and 319,781.64

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Solution

The fourth proportional to 693,758.64, 1,040,621.70 and 319,781.64 is: 479,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,758.64 : 1,040,621.70 = 319,781.64 : x
  2. Step 2: Convert to fraction form
    693,758.64/1,040,621.70 = 319,781.64/x
  3. Step 3: Cross multiply
    693,758.64x = 1,040,621.70 × 319,781.64
  4. Step 4: Simplify right side
    693,758.64x = 332,771,713,845.59
  5. Step 5: Solve for x
    x = 332,771,713,845.59/693,758.64
  6. Step 6: Final answer
    x = 479,664.97

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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.