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Finding the Fourth Proportional to 552,155.40, 828,233.10 and 328,206.60

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Solution

The fourth proportional to 552,155.40, 828,233.10 and 328,206.60 is: 492,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,155.40 : 828,233.10 = 328,206.60 : x
  2. Step 2: Convert to fraction form
    552,155.40/828,233.10 = 328,206.60/x
  3. Step 3: Cross multiply
    552,155.40x = 828,233.10 × 328,206.60
  4. Step 4: Simplify right side
    552,155.40x = 271,831,569,758.46
  5. Step 5: Solve for x
    x = 271,831,569,758.46/552,155.40
  6. Step 6: Final answer
    x = 492,309.90

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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.