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Finding the Fourth Proportional to 552,192.40, 828,288.60 and 328,243.60

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Solution

The fourth proportional to 552,192.40, 828,288.60 and 328,243.60 is: 492,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,192.40 : 828,288.60 = 328,243.60 : x
  2. Step 2: Convert to fraction form
    552,192.40/828,288.60 = 328,243.60/x
  3. Step 3: Cross multiply
    552,192.40x = 828,288.60 × 328,243.60
  4. Step 4: Simplify right side
    552,192.40x = 271,880,431,902.96
  5. Step 5: Solve for x
    x = 271,880,431,902.96/552,192.40
  6. Step 6: Final answer
    x = 492,365.40

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Similar ratio
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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.