Home / 1,439,041-2,158,185.24-427,890.64

Finding the Fourth Proportional to 1,439,041, 2,158,185.24 and 427,890.64

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Solution

The fourth proportional to 1,439,041, 2,158,185.24 and 427,890.64 is: 641,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,041 : 2,158,185.24 = 427,890.64 : x
  2. Step 2: Convert to fraction form
    1,439,041/2,158,185.24 = 427,890.64/x
  3. Step 3: Cross multiply
    1,439,041x = 2,158,185.24 × 427,890.64
  4. Step 4: Simplify right side
    1,439,041x = 923,467,263,582.15
  5. Step 5: Solve for x
    x = 923,467,263,582.15/1,439,041
  6. Step 6: Final answer
    x = 641,724.08

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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.