Home / 1,521,477.72-2,099,704.86-842,414.28

Finding the Fourth Proportional to 1,521,477.72, 2,099,704.86 and 842,414.28

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Solution

The fourth proportional to 1,521,477.72, 2,099,704.86 and 842,414.28 is: 1,162,568.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,477.72 : 2,099,704.86 = 842,414.28 : x
  2. Step 2: Convert to fraction form
    1,521,477.72/2,099,704.86 = 842,414.28/x
  3. Step 3: Cross multiply
    1,521,477.72x = 2,099,704.86 × 842,414.28
  4. Step 4: Simplify right side
    1,521,477.72x = 1,768,821,357,849.40
  5. Step 5: Solve for x
    x = 1,768,821,357,849.40/1,521,477.72
  6. Step 6: Final answer
    x = 1,162,568.03

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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.