Home / 693,789.77-1,040,668.44-319,812.77

Finding the Fourth Proportional to 693,789.77, 1,040,668.44 and 319,812.77

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Solution

The fourth proportional to 693,789.77, 1,040,668.44 and 319,812.77 is: 479,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,789.77 : 1,040,668.44 = 319,812.77 : x
  2. Step 2: Convert to fraction form
    693,789.77/1,040,668.44 = 319,812.77/x
  3. Step 3: Cross multiply
    693,789.77x = 1,040,668.44 × 319,812.77
  4. Step 4: Simplify right side
    693,789.77x = 332,819,051,244.64
  5. Step 5: Solve for x
    x = 332,819,051,244.64/693,789.77
  6. Step 6: Final answer
    x = 479,711.68

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1.5x scale

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.