Home / 825,828.36-1,238,865.66-293,304.72

Finding the Fourth Proportional to 825,828.36, 1,238,865.66 and 293,304.72

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Solution

The fourth proportional to 825,828.36, 1,238,865.66 and 293,304.72 is: 440,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,828.36 : 1,238,865.66 = 293,304.72 : x
  2. Step 2: Convert to fraction form
    825,828.36/1,238,865.66 = 293,304.72/x
  3. Step 3: Cross multiply
    825,828.36x = 1,238,865.66 × 293,304.72
  4. Step 4: Simplify right side
    825,828.36x = 363,365,145,523.92
  5. Step 5: Solve for x
    x = 363,365,145,523.92/825,828.36
  6. Step 6: Final answer
    x = 440,000.81

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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.