Home / 483,321.12-666,895.20-279,297.26

Finding the Fourth Proportional to 483,321.12, 666,895.20 and 279,297.26

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Solution

The fourth proportional to 483,321.12, 666,895.20 and 279,297.26 is: 385,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,321.12 : 666,895.20 = 279,297.26 : x
  2. Step 2: Convert to fraction form
    483,321.12/666,895.20 = 279,297.26/x
  3. Step 3: Cross multiply
    483,321.12x = 666,895.20 × 279,297.26
  4. Step 4: Simplify right side
    483,321.12x = 186,262,002,067.15
  5. Step 5: Solve for x
    x = 186,262,002,067.15/483,321.12
  6. Step 6: Final answer
    x = 385,379.40

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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.