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Finding the Fourth Proportional to 1,789,719.67, 2,469,813.51 and 984,903.67

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Solution

The fourth proportional to 1,789,719.67, 2,469,813.51 and 984,903.67 is: 1,359,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,719.67 : 2,469,813.51 = 984,903.67 : x
  2. Step 2: Convert to fraction form
    1,789,719.67/2,469,813.51 = 984,903.67/x
  3. Step 3: Cross multiply
    1,789,719.67x = 2,469,813.51 × 984,903.67
  4. Step 4: Simplify right side
    1,789,719.67x = 2,432,528,390,214.58
  5. Step 5: Solve for x
    x = 2,432,528,390,214.58/1,789,719.67
  6. Step 6: Final answer
    x = 1,359,167.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.