Home / 758,163.08-1,137,638.22-309,213.32

Finding the Fourth Proportional to 758,163.08, 1,137,638.22 and 309,213.32

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Solution

The fourth proportional to 758,163.08, 1,137,638.22 and 309,213.32 is: 463,980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,163.08 : 1,137,638.22 = 309,213.32 : x
  2. Step 2: Convert to fraction form
    758,163.08/1,137,638.22 = 309,213.32/x
  3. Step 3: Cross multiply
    758,163.08x = 1,137,638.22 × 309,213.32
  4. Step 4: Simplify right side
    758,163.08x = 351,772,890,965.09
  5. Step 5: Solve for x
    x = 351,772,890,965.09/758,163.08
  6. Step 6: Final answer
    x = 463,980.51

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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.