Home / 845,330.27-1,268,189.81-276,729.71

Finding the Fourth Proportional to 845,330.27, 1,268,189.81 and 276,729.71

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Solution

The fourth proportional to 845,330.27, 1,268,189.81 and 276,729.71 is: 415,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,330.27 : 1,268,189.81 = 276,729.71 : x
  2. Step 2: Convert to fraction form
    845,330.27/1,268,189.81 = 276,729.71/x
  3. Step 3: Cross multiply
    845,330.27x = 1,268,189.81 × 276,729.71
  4. Step 4: Simplify right side
    845,330.27x = 350,945,802,208.55
  5. Step 5: Solve for x
    x = 350,945,802,208.55/845,330.27
  6. Step 6: Final answer
    x = 415,158.21

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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.