Home / 866,636.22-1,299,689.46-305,539.50

Finding the Fourth Proportional to 866,636.22, 1,299,689.46 and 305,539.50

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Solution

The fourth proportional to 866,636.22, 1,299,689.46 and 305,539.50 is: 458,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,636.22 : 1,299,689.46 = 305,539.50 : x
  2. Step 2: Convert to fraction form
    866,636.22/1,299,689.46 = 305,539.50/x
  3. Step 3: Cross multiply
    866,636.22x = 1,299,689.46 × 305,539.50
  4. Step 4: Simplify right side
    866,636.22x = 397,106,467,763.67
  5. Step 5: Solve for x
    x = 397,106,467,763.67/866,636.22
  6. Step 6: Final answer
    x = 458,215.87

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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.