Home / 725,834.79-1,001,668.27-399,127.09

Finding the Fourth Proportional to 725,834.79, 1,001,668.27 and 399,127.09

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Solution

The fourth proportional to 725,834.79, 1,001,668.27 and 399,127.09 is: 550,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,834.79 : 1,001,668.27 = 399,127.09 : x
  2. Step 2: Convert to fraction form
    725,834.79/1,001,668.27 = 399,127.09/x
  3. Step 3: Cross multiply
    725,834.79x = 1,001,668.27 × 399,127.09
  4. Step 4: Simplify right side
    725,834.79x = 399,792,941,750.43
  5. Step 5: Solve for x
    x = 399,792,941,750.43/725,834.79
  6. Step 6: Final answer
    x = 550,804.33

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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.