Home / 863,766.37-1,294,431.67-407,871.18

Finding the Fourth Proportional to 863,766.37, 1,294,431.67 and 407,871.18

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Solution

The fourth proportional to 863,766.37, 1,294,431.67 and 407,871.18 is: 611,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,766.37 : 1,294,431.67 = 407,871.18 : x
  2. Step 2: Convert to fraction form
    863,766.37/1,294,431.67 = 407,871.18/x
  3. Step 3: Cross multiply
    863,766.37x = 1,294,431.67 × 407,871.18
  4. Step 4: Simplify right side
    863,766.37x = 527,961,372,672.27
  5. Step 5: Solve for x
    x = 527,961,372,672.27/863,766.37
  6. Step 6: Final answer
    x = 611,231.68

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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.