Home / 2,808,048.60-4,212,072.90-1,390,872.60

Finding the Fourth Proportional to 2,808,048.60, 4,212,072.90 and 1,390,872.60

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Solution

The fourth proportional to 2,808,048.60, 4,212,072.90 and 1,390,872.60 is: 2,086,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,048.60 : 4,212,072.90 = 1,390,872.60 : x
  2. Step 2: Convert to fraction form
    2,808,048.60/4,212,072.90 = 1,390,872.60/x
  3. Step 3: Cross multiply
    2,808,048.60x = 4,212,072.90 × 1,390,872.60
  4. Step 4: Simplify right side
    2,808,048.60x = 5,858,456,785,812.54
  5. Step 5: Solve for x
    x = 5,858,456,785,812.54/2,808,048.60
  6. Step 6: Final answer
    x = 2,086,308.90

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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.