Home / 725,616.61-1,001,325.37-398,927.25

Finding the Fourth Proportional to 725,616.61, 1,001,325.37 and 398,927.25

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Solution

The fourth proportional to 725,616.61, 1,001,325.37 and 398,927.25 is: 550,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,616.61 : 1,001,325.37 = 398,927.25 : x
  2. Step 2: Convert to fraction form
    725,616.61/1,001,325.37 = 398,927.25/x
  3. Step 3: Cross multiply
    725,616.61x = 1,001,325.37 × 398,927.25
  4. Step 4: Simplify right side
    725,616.61x = 399,455,976,209.33
  5. Step 5: Solve for x
    x = 399,455,976,209.33/725,616.61
  6. Step 6: Final answer
    x = 550,505.56

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1.5x scale

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.