Home / 800,142.37-1,200,332.90-294,664.57

Finding the Fourth Proportional to 800,142.37, 1,200,332.90 and 294,664.57

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Solution

The fourth proportional to 800,142.37, 1,200,332.90 and 294,664.57 is: 442,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,142.37 : 1,200,332.90 = 294,664.57 : x
  2. Step 2: Convert to fraction form
    800,142.37/1,200,332.90 = 294,664.57/x
  3. Step 3: Cross multiply
    800,142.37x = 1,200,332.90 × 294,664.57
  4. Step 4: Simplify right side
    800,142.37x = 353,695,577,835.35
  5. Step 5: Solve for x
    x = 353,695,577,835.35/800,142.37
  6. Step 6: Final answer
    x = 442,040.81

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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.