Home / 831,886.03-1,148,002.74-449,912.82

Finding the Fourth Proportional to 831,886.03, 1,148,002.74 and 449,912.82

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Solution

The fourth proportional to 831,886.03, 1,148,002.74 and 449,912.82 is: 620,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,886.03 : 1,148,002.74 = 449,912.82 : x
  2. Step 2: Convert to fraction form
    831,886.03/1,148,002.74 = 449,912.82/x
  3. Step 3: Cross multiply
    831,886.03x = 1,148,002.74 × 449,912.82
  4. Step 4: Simplify right side
    831,886.03x = 516,501,150,121.13
  5. Step 5: Solve for x
    x = 516,501,150,121.13/831,886.03
  6. Step 6: Final answer
    x = 620,879.70

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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.