Home / 831,942.90-1,148,079.96-449,968.50

Finding the Fourth Proportional to 831,942.90, 1,148,079.96 and 449,968.50

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Solution

The fourth proportional to 831,942.90, 1,148,079.96 and 449,968.50 is: 620,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,942.90 : 1,148,079.96 = 449,968.50 : x
  2. Step 2: Convert to fraction form
    831,942.90/1,148,079.96 = 449,968.50/x
  3. Step 3: Cross multiply
    831,942.90x = 1,148,079.96 × 449,968.50
  4. Step 4: Simplify right side
    831,942.90x = 516,599,817,481.26
  5. Step 5: Solve for x
    x = 516,599,817,481.26/831,942.90
  6. Step 6: Final answer
    x = 620,955.86

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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.