Home / 2,814,845.20-4,222,267.80-684,912.40

Finding the Fourth Proportional to 2,814,845.20, 4,222,267.80 and 684,912.40

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Solution

The fourth proportional to 2,814,845.20, 4,222,267.80 and 684,912.40 is: 1,027,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814,845.20 : 4,222,267.80 = 684,912.40 : x
  2. Step 2: Convert to fraction form
    2,814,845.20/4,222,267.80 = 684,912.40/x
  3. Step 3: Cross multiply
    2,814,845.20x = 4,222,267.80 × 684,912.40
  4. Step 4: Simplify right side
    2,814,845.20x = 2,891,883,572,340.72
  5. Step 5: Solve for x
    x = 2,891,883,572,340.72/2,814,845.20
  6. Step 6: Final answer
    x = 1,027,368.60

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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.