Home / 853,122.43-1,177,317.01-485,581.62

Finding the Fourth Proportional to 853,122.43, 1,177,317.01 and 485,581.62

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Solution

The fourth proportional to 853,122.43, 1,177,317.01 and 485,581.62 is: 670,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,122.43 : 1,177,317.01 = 485,581.62 : x
  2. Step 2: Convert to fraction form
    853,122.43/1,177,317.01 = 485,581.62/x
  3. Step 3: Cross multiply
    853,122.43x = 1,177,317.01 × 485,581.62
  4. Step 4: Simplify right side
    853,122.43x = 571,683,500,969.36
  5. Step 5: Solve for x
    x = 571,683,500,969.36/853,122.43
  6. Step 6: Final answer
    x = 670,107.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.