Home / 399,056.22-550,765.98-381,119.58

Finding the Fourth Proportional to 399,056.22, 550,765.98 and 381,119.58

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Solution

The fourth proportional to 399,056.22, 550,765.98 and 381,119.58 is: 526,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,056.22 : 550,765.98 = 381,119.58 : x
  2. Step 2: Convert to fraction form
    399,056.22/550,765.98 = 381,119.58/x
  3. Step 3: Cross multiply
    399,056.22x = 550,765.98 × 381,119.58
  4. Step 4: Simplify right side
    399,056.22x = 209,907,698,975.89
  5. Step 5: Solve for x
    x = 209,907,698,975.89/399,056.22
  6. Step 6: Final answer
    x = 526,010.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.