Home / 1,353,719.20-1,868,002.32-809,744.80

Finding the Fourth Proportional to 1,353,719.20, 1,868,002.32 and 809,744.80

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Solution

The fourth proportional to 1,353,719.20, 1,868,002.32 and 809,744.80 is: 1,117,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,719.20 : 1,868,002.32 = 809,744.80 : x
  2. Step 2: Convert to fraction form
    1,353,719.20/1,868,002.32 = 809,744.80/x
  3. Step 3: Cross multiply
    1,353,719.20x = 1,868,002.32 × 809,744.80
  4. Step 4: Simplify right side
    1,353,719.20x = 1,512,605,165,007.94
  5. Step 5: Solve for x
    x = 1,512,605,165,007.94/1,353,719.20
  6. Step 6: Final answer
    x = 1,117,369.96

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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.