Home / 863,420.09-1,295,399.85-294,814.67

Finding the Fourth Proportional to 863,420.09, 1,295,399.85 and 294,814.67

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Solution

The fourth proportional to 863,420.09, 1,295,399.85 and 294,814.67 is: 442,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,420.09 : 1,295,399.85 = 294,814.67 : x
  2. Step 2: Convert to fraction form
    863,420.09/1,295,399.85 = 294,814.67/x
  3. Step 3: Cross multiply
    863,420.09x = 1,295,399.85 × 294,814.67
  4. Step 4: Simplify right side
    863,420.09x = 381,902,872,818.80
  5. Step 5: Solve for x
    x = 381,902,872,818.80/863,420.09
  6. Step 6: Final answer
    x = 442,314.09

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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.