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Finding the Fourth Proportional to 879,706.70, 1,322,184.45 and 764,233.10

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Solution

The fourth proportional to 879,706.70, 1,322,184.45 and 764,233.10 is: 1,148,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,706.70 : 1,322,184.45 = 764,233.10 : x
  2. Step 2: Convert to fraction form
    879,706.70/1,322,184.45 = 764,233.10/x
  3. Step 3: Cross multiply
    879,706.70x = 1,322,184.45 × 764,233.10
  4. Step 4: Simplify right side
    879,706.70x = 1,010,457,120,995.30
  5. Step 5: Solve for x
    x = 1,010,457,120,995.30/879,706.70
  6. Step 6: Final answer
    x = 1,148,629.56

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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.