Home / 1,309,958.70-1,807,742.61-729,169.21

Finding the Fourth Proportional to 1,309,958.70, 1,807,742.61 and 729,169.21

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Solution

The fourth proportional to 1,309,958.70, 1,807,742.61 and 729,169.21 is: 1,006,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,958.70 : 1,807,742.61 = 729,169.21 : x
  2. Step 2: Convert to fraction form
    1,309,958.70/1,807,742.61 = 729,169.21/x
  3. Step 3: Cross multiply
    1,309,958.70x = 1,807,742.61 × 729,169.21
  4. Step 4: Simplify right side
    1,309,958.70x = 1,318,150,258,160.99
  5. Step 5: Solve for x
    x = 1,318,150,258,160.99/1,309,958.70
  6. Step 6: Final answer
    x = 1,006,253.29

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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.