Home / 845,969.90-1,268,659.69-340,399.90

Finding the Fourth Proportional to 845,969.90, 1,268,659.69 and 340,399.90

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Solution

The fourth proportional to 845,969.90, 1,268,659.69 and 340,399.90 is: 510,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,969.90 : 1,268,659.69 = 340,399.90 : x
  2. Step 2: Convert to fraction form
    845,969.90/1,268,659.69 = 340,399.90/x
  3. Step 3: Cross multiply
    845,969.90x = 1,268,659.69 × 340,399.90
  4. Step 4: Simplify right side
    845,969.90x = 431,851,631,610.03
  5. Step 5: Solve for x
    x = 431,851,631,610.03/845,969.90
  6. Step 6: Final answer
    x = 510,481.08

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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.