Home / 2,086,416.88-3,129,591.72-666,463.60

Finding the Fourth Proportional to 2,086,416.88, 3,129,591.72 and 666,463.60

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Solution

The fourth proportional to 2,086,416.88, 3,129,591.72 and 666,463.60 is: 999,684.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,416.88 : 3,129,591.72 = 666,463.60 : x
  2. Step 2: Convert to fraction form
    2,086,416.88/3,129,591.72 = 666,463.60/x
  3. Step 3: Cross multiply
    2,086,416.88x = 3,129,591.72 × 666,463.60
  4. Step 4: Simplify right side
    2,086,416.88x = 2,085,758,964,241.39
  5. Step 5: Solve for x
    x = 2,085,758,964,241.39/2,086,416.88
  6. Step 6: Final answer
    x = 999,684.67

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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.