Home / 551,621.42-828,677.75-327,129.11

Finding the Fourth Proportional to 551,621.42, 828,677.75 and 327,129.11

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Solution

The fourth proportional to 551,621.42, 828,677.75 and 327,129.11 is: 491,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,621.42 : 828,677.75 = 327,129.11 : x
  2. Step 2: Convert to fraction form
    551,621.42/828,677.75 = 327,129.11/x
  3. Step 3: Cross multiply
    551,621.42x = 828,677.75 × 327,129.11
  4. Step 4: Simplify right side
    551,621.42x = 271,084,609,055.27
  5. Step 5: Solve for x
    x = 271,084,609,055.27/551,621.42
  6. Step 6: Final answer
    x = 491,432.35

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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.