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Finding the Fourth Proportional to 551,737.60, 827,606.40 and 327,788.80

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Solution

The fourth proportional to 551,737.60, 827,606.40 and 327,788.80 is: 491,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,737.60 : 827,606.40 = 327,788.80 : x
  2. Step 2: Convert to fraction form
    551,737.60/827,606.40 = 327,788.80/x
  3. Step 3: Cross multiply
    551,737.60x = 827,606.40 × 327,788.80
  4. Step 4: Simplify right side
    551,737.60x = 271,280,108,728.32
  5. Step 5: Solve for x
    x = 271,280,108,728.32/551,737.60
  6. Step 6: Final answer
    x = 491,683.20

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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.