Home / 1,521,455.88-2,099,674.73-842,392.38

Finding the Fourth Proportional to 1,521,455.88, 2,099,674.73 and 842,392.38

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Solution

The fourth proportional to 1,521,455.88, 2,099,674.73 and 842,392.38 is: 1,162,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,455.88 : 2,099,674.73 = 842,392.38 : x
  2. Step 2: Convert to fraction form
    1,521,455.88/2,099,674.73 = 842,392.38/x
  3. Step 3: Cross multiply
    1,521,455.88x = 2,099,674.73 × 842,392.38
  4. Step 4: Simplify right side
    1,521,455.88x = 1,768,749,993,030.56
  5. Step 5: Solve for x
    x = 1,768,749,993,030.56/1,521,455.88
  6. Step 6: Final answer
    x = 1,162,537.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.