Home / 1,407,991.35-2,111,880.85-448,408.20

Finding the Fourth Proportional to 1,407,991.35, 2,111,880.85 and 448,408.20

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Solution

The fourth proportional to 1,407,991.35, 2,111,880.85 and 448,408.20 is: 672,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,991.35 : 2,111,880.85 = 448,408.20 : x
  2. Step 2: Convert to fraction form
    1,407,991.35/2,111,880.85 = 448,408.20/x
  3. Step 3: Cross multiply
    1,407,991.35x = 2,111,880.85 × 448,408.20
  4. Step 4: Simplify right side
    1,407,991.35x = 946,984,690,562.97
  5. Step 5: Solve for x
    x = 946,984,690,562.97/1,407,991.35
  6. Step 6: Final answer
    x = 672,578.49

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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.