Home / 699,629.86-1,049,444.79-665,635.78

Finding the Fourth Proportional to 699,629.86, 1,049,444.79 and 665,635.78

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Solution

The fourth proportional to 699,629.86, 1,049,444.79 and 665,635.78 is: 998,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,629.86 : 1,049,444.79 = 665,635.78 : x
  2. Step 2: Convert to fraction form
    699,629.86/1,049,444.79 = 665,635.78/x
  3. Step 3: Cross multiply
    699,629.86x = 1,049,444.79 × 665,635.78
  4. Step 4: Simplify right side
    699,629.86x = 698,548,001,358.59
  5. Step 5: Solve for x
    x = 698,548,001,358.59/699,629.86
  6. Step 6: Final answer
    x = 998,453.67

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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.