Home / 947,408.80-1,421,919.60-386,845.60

Finding the Fourth Proportional to 947,408.80, 1,421,919.60 and 386,845.60

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Solution

The fourth proportional to 947,408.80, 1,421,919.60 and 386,845.60 is: 580,597.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,408.80 : 1,421,919.60 = 386,845.60 : x
  2. Step 2: Convert to fraction form
    947,408.80/1,421,919.60 = 386,845.60/x
  3. Step 3: Cross multiply
    947,408.80x = 1,421,919.60 × 386,845.60
  4. Step 4: Simplify right side
    947,408.80x = 550,063,340,813.76
  5. Step 5: Solve for x
    x = 550,063,340,813.76/947,408.80
  6. Step 6: Final answer
    x = 580,597.67

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1.5x scale

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.