Home / 725,719.82-1,001,490.74-399,054.22

Finding the Fourth Proportional to 725,719.82, 1,001,490.74 and 399,054.22

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Solution

The fourth proportional to 725,719.82, 1,001,490.74 and 399,054.22 is: 550,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,719.82 : 1,001,490.74 = 399,054.22 : x
  2. Step 2: Convert to fraction form
    725,719.82/1,001,490.74 = 399,054.22/x
  3. Step 3: Cross multiply
    725,719.82x = 1,001,490.74 × 399,054.22
  4. Step 4: Simplify right side
    725,719.82x = 399,649,099,085.20
  5. Step 5: Solve for x
    x = 399,649,099,085.20/725,719.82
  6. Step 6: Final answer
    x = 550,693.38

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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.