Home / 845,845.20-1,268,472.69-340,275.06

Finding the Fourth Proportional to 845,845.20, 1,268,472.69 and 340,275.06

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Solution

The fourth proportional to 845,845.20, 1,268,472.69 and 340,275.06 is: 510,293.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,845.20 : 1,268,472.69 = 340,275.06 : x
  2. Step 2: Convert to fraction form
    845,845.20/1,268,472.69 = 340,275.06/x
  3. Step 3: Cross multiply
    845,845.20x = 1,268,472.69 × 340,275.06
  4. Step 4: Simplify right side
    845,845.20x = 431,629,620,698.11
  5. Step 5: Solve for x
    x = 431,629,620,698.11/845,845.20
  6. Step 6: Final answer
    x = 510,293.87

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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.