Home / 856,059.60-1,284,105.81-279,684.48

Finding the Fourth Proportional to 856,059.60, 1,284,105.81 and 279,684.48

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Solution

The fourth proportional to 856,059.60, 1,284,105.81 and 279,684.48 is: 419,532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,059.60 : 1,284,105.81 = 279,684.48 : x
  2. Step 2: Convert to fraction form
    856,059.60/1,284,105.81 = 279,684.48/x
  3. Step 3: Cross multiply
    856,059.60x = 1,284,105.81 × 279,684.48
  4. Step 4: Simplify right side
    856,059.60x = 359,144,465,734.83
  5. Step 5: Solve for x
    x = 359,144,465,734.83/856,059.60
  6. Step 6: Final answer
    x = 419,532.08

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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.