Home / 1,419,199.38-2,129,138.04-472,578.30

Finding the Fourth Proportional to 1,419,199.38, 2,129,138.04 and 472,578.30

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Solution

The fourth proportional to 1,419,199.38, 2,129,138.04 and 472,578.30 is: 708,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,199.38 : 2,129,138.04 = 472,578.30 : x
  2. Step 2: Convert to fraction form
    1,419,199.38/2,129,138.04 = 472,578.30/x
  3. Step 3: Cross multiply
    1,419,199.38x = 2,129,138.04 × 472,578.30
  4. Step 4: Simplify right side
    1,419,199.38x = 1,006,184,435,408.53
  5. Step 5: Solve for x
    x = 1,006,184,435,408.53/1,419,199.38
  6. Step 6: Final answer
    x = 708,980.32

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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.