Home / 1,408,154.86-2,111,388.72-448,195.78

Finding the Fourth Proportional to 1,408,154.86, 2,111,388.72 and 448,195.78

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Solution

The fourth proportional to 1,408,154.86, 2,111,388.72 and 448,195.78 is: 672,025.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,154.86 : 2,111,388.72 = 448,195.78 : x
  2. Step 2: Convert to fraction form
    1,408,154.86/2,111,388.72 = 448,195.78/x
  3. Step 3: Cross multiply
    1,408,154.86x = 2,111,388.72 × 448,195.78
  4. Step 4: Simplify right side
    1,408,154.86x = 946,315,514,243.60
  5. Step 5: Solve for x
    x = 946,315,514,243.60/1,408,154.86
  6. Step 6: Final answer
    x = 672,025.17

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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.