Home / 759,621.44-1,139,080.86-279,728.06

Finding the Fourth Proportional to 759,621.44, 1,139,080.86 and 279,728.06

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Solution

The fourth proportional to 759,621.44, 1,139,080.86 and 279,728.06 is: 419,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,621.44 : 1,139,080.86 = 279,728.06 : x
  2. Step 2: Convert to fraction form
    759,621.44/1,139,080.86 = 279,728.06/x
  3. Step 3: Cross multiply
    759,621.44x = 1,139,080.86 × 279,728.06
  4. Step 4: Simplify right side
    759,621.44x = 318,632,879,150.93
  5. Step 5: Solve for x
    x = 318,632,879,150.93/759,621.44
  6. Step 6: Final answer
    x = 419,462.72

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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.