Home / 804,138.80-1,206,208.20-384,234.80

Finding the Fourth Proportional to 804,138.80, 1,206,208.20 and 384,234.80

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Solution

The fourth proportional to 804,138.80, 1,206,208.20 and 384,234.80 is: 576,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,138.80 : 1,206,208.20 = 384,234.80 : x
  2. Step 2: Convert to fraction form
    804,138.80/1,206,208.20 = 384,234.80/x
  3. Step 3: Cross multiply
    804,138.80x = 1,206,208.20 × 384,234.80
  4. Step 4: Simplify right side
    804,138.80x = 463,467,166,485.36
  5. Step 5: Solve for x
    x = 463,467,166,485.36/804,138.80
  6. Step 6: Final answer
    x = 576,352.20

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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.