Home / 720,516.87-1,080,964.58-258,941.44

Finding the Fourth Proportional to 720,516.87, 1,080,964.58 and 258,941.44

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Solution

The fourth proportional to 720,516.87, 1,080,964.58 and 258,941.44 is: 388,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,516.87 : 1,080,964.58 = 258,941.44 : x
  2. Step 2: Convert to fraction form
    720,516.87/1,080,964.58 = 258,941.44/x
  3. Step 3: Cross multiply
    720,516.87x = 1,080,964.58 × 258,941.44
  4. Step 4: Simplify right side
    720,516.87x = 279,906,524,934.20
  5. Step 5: Solve for x
    x = 279,906,524,934.20/720,516.87
  6. Step 6: Final answer
    x = 388,480.18

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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.