Home / 840,860.57-1,260,540.72-308,257.22

Finding the Fourth Proportional to 840,860.57, 1,260,540.72 and 308,257.22

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Solution

The fourth proportional to 840,860.57, 1,260,540.72 and 308,257.22 is: 462,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,860.57 : 1,260,540.72 = 308,257.22 : x
  2. Step 2: Convert to fraction form
    840,860.57/1,260,540.72 = 308,257.22/x
  3. Step 3: Cross multiply
    840,860.57x = 1,260,540.72 × 308,257.22
  4. Step 4: Simplify right side
    840,860.57x = 388,570,771,741.30
  5. Step 5: Solve for x
    x = 388,570,771,741.30/840,860.57
  6. Step 6: Final answer
    x = 462,110.83

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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.