Home / 845,863.20-1,268,499.69-340,293.06

Finding the Fourth Proportional to 845,863.20, 1,268,499.69 and 340,293.06

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Solution

The fourth proportional to 845,863.20, 1,268,499.69 and 340,293.06 is: 510,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,863.20 : 1,268,499.69 = 340,293.06 : x
  2. Step 2: Convert to fraction form
    845,863.20/1,268,499.69 = 340,293.06/x
  3. Step 3: Cross multiply
    845,863.20x = 1,268,499.69 × 340,293.06
  4. Step 4: Simplify right side
    845,863.20x = 431,661,641,119.15
  5. Step 5: Solve for x
    x = 431,661,641,119.15/845,863.20
  6. Step 6: Final answer
    x = 510,320.87

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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.