Home / 1,099,418.40-1,647,815.40-459,720.90

Finding the Fourth Proportional to 1,099,418.40, 1,647,815.40 and 459,720.90

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Solution

The fourth proportional to 1,099,418.40, 1,647,815.40 and 459,720.90 is: 689,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,418.40 : 1,647,815.40 = 459,720.90 : x
  2. Step 2: Convert to fraction form
    1,099,418.40/1,647,815.40 = 459,720.90/x
  3. Step 3: Cross multiply
    1,099,418.40x = 1,647,815.40 × 459,720.90
  4. Step 4: Simplify right side
    1,099,418.40x = 757,535,178,721.86
  5. Step 5: Solve for x
    x = 757,535,178,721.86/1,099,418.40
  6. Step 6: Final answer
    x = 689,032.65

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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.