Home / 1,408,155.86-2,111,390.22-448,196.78

Finding the Fourth Proportional to 1,408,155.86, 2,111,390.22 and 448,196.78

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Solution

The fourth proportional to 1,408,155.86, 2,111,390.22 and 448,196.78 is: 672,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,155.86 : 2,111,390.22 = 448,196.78 : x
  2. Step 2: Convert to fraction form
    1,408,155.86/2,111,390.22 = 448,196.78/x
  3. Step 3: Cross multiply
    1,408,155.86x = 2,111,390.22 × 448,196.78
  4. Step 4: Simplify right side
    1,408,155.86x = 946,318,297,927.49
  5. Step 5: Solve for x
    x = 946,318,297,927.49/1,408,155.86
  6. Step 6: Final answer
    x = 672,026.67

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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.