Home / 856,541.12-1,284,313.66-324,103.28

Finding the Fourth Proportional to 856,541.12, 1,284,313.66 and 324,103.28

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Solution

The fourth proportional to 856,541.12, 1,284,313.66 and 324,103.28 is: 485,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,541.12 : 1,284,313.66 = 324,103.28 : x
  2. Step 2: Convert to fraction form
    856,541.12/1,284,313.66 = 324,103.28/x
  3. Step 3: Cross multiply
    856,541.12x = 1,284,313.66 × 324,103.28
  4. Step 4: Simplify right side
    856,541.12x = 416,250,262,522.98
  5. Step 5: Solve for x
    x = 416,250,262,522.98/856,541.12
  6. Step 6: Final answer
    x = 485,966.47

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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.