Home / 836,790.39-1,255,174.65-205,709.67

Finding the Fourth Proportional to 836,790.39, 1,255,174.65 and 205,709.67

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Solution

The fourth proportional to 836,790.39, 1,255,174.65 and 205,709.67 is: 308,561.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,790.39 : 1,255,174.65 = 205,709.67 : x
  2. Step 2: Convert to fraction form
    836,790.39/1,255,174.65 = 205,709.67/x
  3. Step 3: Cross multiply
    836,790.39x = 1,255,174.65 × 205,709.67
  4. Step 4: Simplify right side
    836,790.39x = 258,201,563,043.87
  5. Step 5: Solve for x
    x = 258,201,563,043.87/836,790.39
  6. Step 6: Final answer
    x = 308,561.82

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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.