Home / 786,814.43-1,177,683.75-407,212.97

Finding the Fourth Proportional to 786,814.43, 1,177,683.75 and 407,212.97

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Solution

The fourth proportional to 786,814.43, 1,177,683.75 and 407,212.97 is: 609,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,814.43 : 1,177,683.75 = 407,212.97 : x
  2. Step 2: Convert to fraction form
    786,814.43/1,177,683.75 = 407,212.97/x
  3. Step 3: Cross multiply
    786,814.43x = 1,177,683.75 × 407,212.97
  4. Step 4: Simplify right side
    786,814.43x = 479,568,091,669.82
  5. Step 5: Solve for x
    x = 479,568,091,669.82/786,814.43
  6. Step 6: Final answer
    x = 609,505.97

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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.