Home / 1,353,140.92-1,867,334.31-809,276.63

Finding the Fourth Proportional to 1,353,140.92, 1,867,334.31 and 809,276.63

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Solution

The fourth proportional to 1,353,140.92, 1,867,334.31 and 809,276.63 is: 1,116,801.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,140.92 : 1,867,334.31 = 809,276.63 : x
  2. Step 2: Convert to fraction form
    1,353,140.92/1,867,334.31 = 809,276.63/x
  3. Step 3: Cross multiply
    1,353,140.92x = 1,867,334.31 × 809,276.63
  4. Step 4: Simplify right side
    1,353,140.92x = 1,511,190,008,143.50
  5. Step 5: Solve for x
    x = 1,511,190,008,143.50/1,353,140.92
  6. Step 6: Final answer
    x = 1,116,801.65

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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.