Home / 775,215.56-1,161,639.29-325,690.67

Finding the Fourth Proportional to 775,215.56, 1,161,639.29 and 325,690.67

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Solution

The fourth proportional to 775,215.56, 1,161,639.29 and 325,690.67 is: 488,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,215.56 : 1,161,639.29 = 325,690.67 : x
  2. Step 2: Convert to fraction form
    775,215.56/1,161,639.29 = 325,690.67/x
  3. Step 3: Cross multiply
    775,215.56x = 1,161,639.29 × 325,690.67
  4. Step 4: Simplify right side
    775,215.56x = 378,335,082,376.75
  5. Step 5: Solve for x
    x = 378,335,082,376.75/775,215.56
  6. Step 6: Final answer
    x = 488,038.55

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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.