Home / 845,868.80-1,268,657.40-313,115.60

Finding the Fourth Proportional to 845,868.80, 1,268,657.40 and 313,115.60

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Solution

The fourth proportional to 845,868.80, 1,268,657.40 and 313,115.60 is: 469,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,868.80 : 1,268,657.40 = 313,115.60 : x
  2. Step 2: Convert to fraction form
    845,868.80/1,268,657.40 = 313,115.60/x
  3. Step 3: Cross multiply
    845,868.80x = 1,268,657.40 × 313,115.60
  4. Step 4: Simplify right side
    845,868.80x = 397,236,422,995.44
  5. Step 5: Solve for x
    x = 397,236,422,995.44/845,868.80
  6. Step 6: Final answer
    x = 469,619.43

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1.5x scale

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.