Home / 725,878.98-1,001,738.71-399,217.26

Finding the Fourth Proportional to 725,878.98, 1,001,738.71 and 399,217.26

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Solution

The fourth proportional to 725,878.98, 1,001,738.71 and 399,217.26 is: 550,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,878.98 : 1,001,738.71 = 399,217.26 : x
  2. Step 2: Convert to fraction form
    725,878.98/1,001,738.71 = 399,217.26/x
  3. Step 3: Cross multiply
    725,878.98x = 1,001,738.71 × 399,217.26
  4. Step 4: Simplify right side
    725,878.98x = 399,911,378,033.44
  5. Step 5: Solve for x
    x = 399,911,378,033.44/725,878.98
  6. Step 6: Final answer
    x = 550,933.96

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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.