Home / 809,079.60-1,213,860.84-240,479.56

Finding the Fourth Proportional to 809,079.60, 1,213,860.84 and 240,479.56

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Solution

The fourth proportional to 809,079.60, 1,213,860.84 and 240,479.56 is: 360,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,079.60 : 1,213,860.84 = 240,479.56 : x
  2. Step 2: Convert to fraction form
    809,079.60/1,213,860.84 = 240,479.56/x
  3. Step 3: Cross multiply
    809,079.60x = 1,213,860.84 × 240,479.56
  4. Step 4: Simplify right side
    809,079.60x = 291,908,720,704.43
  5. Step 5: Solve for x
    x = 291,908,720,704.43/809,079.60
  6. Step 6: Final answer
    x = 360,791.10

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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.