Home / 551,621.87-828,678.43-327,129.56

Finding the Fourth Proportional to 551,621.87, 828,678.43 and 327,129.56

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Solution

The fourth proportional to 551,621.87, 828,678.43 and 327,129.56 is: 491,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,621.87 : 828,678.43 = 327,129.56 : x
  2. Step 2: Convert to fraction form
    551,621.87/828,678.43 = 327,129.56/x
  3. Step 3: Cross multiply
    551,621.87x = 828,678.43 × 327,129.56
  4. Step 4: Simplify right side
    551,621.87x = 271,085,210,187.39
  5. Step 5: Solve for x
    x = 271,085,210,187.39/551,621.87
  6. Step 6: Final answer
    x = 491,433.04

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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.