Home / 1,353,538.28-1,867,705.22-809,475.57

Finding the Fourth Proportional to 1,353,538.28, 1,867,705.22 and 809,475.57

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Solution

The fourth proportional to 1,353,538.28, 1,867,705.22 and 809,475.57 is: 1,116,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,538.28 : 1,867,705.22 = 809,475.57 : x
  2. Step 2: Convert to fraction form
    1,353,538.28/1,867,705.22 = 809,475.57/x
  3. Step 3: Cross multiply
    1,353,538.28x = 1,867,705.22 × 809,475.57
  4. Step 4: Simplify right side
    1,353,538.28x = 1,511,861,743,504.10
  5. Step 5: Solve for x
    x = 1,511,861,743,504.10/1,353,538.28
  6. Step 6: Final answer
    x = 1,116,970.07

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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.