Home / 912,268.82-1,368,272.90-313,218.74

Finding the Fourth Proportional to 912,268.82, 1,368,272.90 and 313,218.74

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Solution

The fourth proportional to 912,268.82, 1,368,272.90 and 313,218.74 is: 469,783.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,268.82 : 1,368,272.90 = 313,218.74 : x
  2. Step 2: Convert to fraction form
    912,268.82/1,368,272.90 = 313,218.74/x
  3. Step 3: Cross multiply
    912,268.82x = 1,368,272.90 × 313,218.74
  4. Step 4: Simplify right side
    912,268.82x = 428,568,713,714.15
  5. Step 5: Solve for x
    x = 428,568,713,714.15/912,268.82
  6. Step 6: Final answer
    x = 469,783.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.