Home / 1,212,845.80-1,819,268.70-414,007.60

Finding the Fourth Proportional to 1,212,845.80, 1,819,268.70 and 414,007.60

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Solution

The fourth proportional to 1,212,845.80, 1,819,268.70 and 414,007.60 is: 621,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,845.80 : 1,819,268.70 = 414,007.60 : x
  2. Step 2: Convert to fraction form
    1,212,845.80/1,819,268.70 = 414,007.60/x
  3. Step 3: Cross multiply
    1,212,845.80x = 1,819,268.70 × 414,007.60
  4. Step 4: Simplify right side
    1,212,845.80x = 753,191,068,242.12
  5. Step 5: Solve for x
    x = 753,191,068,242.12/1,212,845.80
  6. Step 6: Final answer
    x = 621,011.40

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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.