Home / 2,168,492.80-3,250,406.40-820,134.40

Finding the Fourth Proportional to 2,168,492.80, 3,250,406.40 and 820,134.40

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Solution

The fourth proportional to 2,168,492.80, 3,250,406.40 and 820,134.40 is: 1,229,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,492.80 : 3,250,406.40 = 820,134.40 : x
  2. Step 2: Convert to fraction form
    2,168,492.80/3,250,406.40 = 820,134.40/x
  3. Step 3: Cross multiply
    2,168,492.80x = 3,250,406.40 × 820,134.40
  4. Step 4: Simplify right side
    2,168,492.80x = 2,665,770,102,620.16
  5. Step 5: Solve for x
    x = 2,665,770,102,620.16/2,168,492.80
  6. Step 6: Final answer
    x = 1,229,319.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.