Home / 2,808,042.40-4,212,063.60-1,213,719.40

Finding the Fourth Proportional to 2,808,042.40, 4,212,063.60 and 1,213,719.40

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Solution

The fourth proportional to 2,808,042.40, 4,212,063.60 and 1,213,719.40 is: 1,820,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,042.40 : 4,212,063.60 = 1,213,719.40 : x
  2. Step 2: Convert to fraction form
    2,808,042.40/4,212,063.60 = 1,213,719.40/x
  3. Step 3: Cross multiply
    2,808,042.40x = 4,212,063.60 × 1,213,719.40
  4. Step 4: Simplify right side
    2,808,042.40x = 5,112,263,305,353.84
  5. Step 5: Solve for x
    x = 5,112,263,305,353.84/2,808,042.40
  6. Step 6: Final answer
    x = 1,820,579.10

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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.