Home / 725,810.56-1,001,622.52-399,144.64

Finding the Fourth Proportional to 725,810.56, 1,001,622.52 and 399,144.64

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Solution

The fourth proportional to 725,810.56, 1,001,622.52 and 399,144.64 is: 550,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,810.56 : 1,001,622.52 = 399,144.64 : x
  2. Step 2: Convert to fraction form
    725,810.56/1,001,622.52 = 399,144.64/x
  3. Step 3: Cross multiply
    725,810.56x = 1,001,622.52 × 399,144.64
  4. Step 4: Simplify right side
    725,810.56x = 399,792,260,161.29
  5. Step 5: Solve for x
    x = 399,792,260,161.29/725,810.56
  6. Step 6: Final answer
    x = 550,821.77

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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.