Home / 667,629.36-1,001,484.75-218,397.66

Finding the Fourth Proportional to 667,629.36, 1,001,484.75 and 218,397.66

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Solution

The fourth proportional to 667,629.36, 1,001,484.75 and 218,397.66 is: 327,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,629.36 : 1,001,484.75 = 218,397.66 : x
  2. Step 2: Convert to fraction form
    667,629.36/1,001,484.75 = 218,397.66/x
  3. Step 3: Cross multiply
    667,629.36x = 1,001,484.75 × 218,397.66
  4. Step 4: Simplify right side
    667,629.36x = 218,721,925,925.69
  5. Step 5: Solve for x
    x = 218,721,925,925.69/667,629.36
  6. Step 6: Final answer
    x = 327,609.81

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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.