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Finding the Fourth Proportional to 1,788,742.68, 2,682,771.71 and 694,527.54

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Solution

The fourth proportional to 1,788,742.68, 2,682,771.71 and 694,527.54 is: 1,041,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,742.68 : 2,682,771.71 = 694,527.54 : x
  2. Step 2: Convert to fraction form
    1,788,742.68/2,682,771.71 = 694,527.54/x
  3. Step 3: Cross multiply
    1,788,742.68x = 2,682,771.71 × 694,527.54
  4. Step 4: Simplify right side
    1,788,742.68x = 1,863,258,836,127.89
  5. Step 5: Solve for x
    x = 1,863,258,836,127.89/1,788,742.68
  6. Step 6: Final answer
    x = 1,041,658.40

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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.