Home / 1,321,264.51-1,981,885.83-785,235.67

Finding the Fourth Proportional to 1,321,264.51, 1,981,885.83 and 785,235.67

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Solution

The fourth proportional to 1,321,264.51, 1,981,885.83 and 785,235.67 is: 1,177,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,264.51 : 1,981,885.83 = 785,235.67 : x
  2. Step 2: Convert to fraction form
    1,321,264.51/1,981,885.83 = 785,235.67/x
  3. Step 3: Cross multiply
    1,321,264.51x = 1,981,885.83 × 785,235.67
  4. Step 4: Simplify right side
    1,321,264.51x = 1,556,247,447,583.56
  5. Step 5: Solve for x
    x = 1,556,247,447,583.56/1,321,264.51
  6. Step 6: Final answer
    x = 1,177,847.01

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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.