Home / 863,840.70-1,296,409.05-442,899.90

Finding the Fourth Proportional to 863,840.70, 1,296,409.05 and 442,899.90

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Solution

The fourth proportional to 863,840.70, 1,296,409.05 and 442,899.90 is: 664,682.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,840.70 : 1,296,409.05 = 442,899.90 : x
  2. Step 2: Convert to fraction form
    863,840.70/1,296,409.05 = 442,899.90/x
  3. Step 3: Cross multiply
    863,840.70x = 1,296,409.05 × 442,899.90
  4. Step 4: Simplify right side
    863,840.70x = 574,179,438,604.10
  5. Step 5: Solve for x
    x = 574,179,438,604.10/863,840.70
  6. Step 6: Final answer
    x = 664,682.09

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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.