Home / 1,391,300.45-2,082,300.52-792,100.74

Finding the Fourth Proportional to 1,391,300.45, 2,082,300.52 and 792,100.74

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Solution

The fourth proportional to 1,391,300.45, 2,082,300.52 and 792,100.74 is: 1,185,503.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,300.45 : 2,082,300.52 = 792,100.74 : x
  2. Step 2: Convert to fraction form
    1,391,300.45/2,082,300.52 = 792,100.74/x
  3. Step 3: Cross multiply
    1,391,300.45x = 2,082,300.52 × 792,100.74
  4. Step 4: Simplify right side
    1,391,300.45x = 1,649,391,782,794.38
  5. Step 5: Solve for x
    x = 1,649,391,782,794.38/1,391,300.45
  6. Step 6: Final answer
    x = 1,185,503.67

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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.