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Finding the Fourth Proportional to 800,639.16, 1,200,770.04 and 294,925.44

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Solution

The fourth proportional to 800,639.16, 1,200,770.04 and 294,925.44 is: 442,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,639.16 : 1,200,770.04 = 294,925.44 : x
  2. Step 2: Convert to fraction form
    800,639.16/1,200,770.04 = 294,925.44/x
  3. Step 3: Cross multiply
    800,639.16x = 1,200,770.04 × 294,925.44
  4. Step 4: Simplify right side
    800,639.16x = 354,137,632,385.82
  5. Step 5: Solve for x
    x = 354,137,632,385.82/800,639.16
  6. Step 6: Final answer
    x = 442,318.65

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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.