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Finding the Fourth Proportional to 551,615.88, 828,669.44 and 327,123.57

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Solution

The fourth proportional to 551,615.88, 828,669.44 and 327,123.57 is: 491,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,615.88 : 828,669.44 = 327,123.57 : x
  2. Step 2: Convert to fraction form
    551,615.88/828,669.44 = 327,123.57/x
  3. Step 3: Cross multiply
    551,615.88x = 828,669.44 × 327,123.57
  4. Step 4: Simplify right side
    551,615.88x = 271,077,305,673.80
  5. Step 5: Solve for x
    x = 271,077,305,673.80/551,615.88
  6. Step 6: Final answer
    x = 491,424.05

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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.