Home / 804,172.80-1,206,259.20-213,196.80

Finding the Fourth Proportional to 804,172.80, 1,206,259.20 and 213,196.80

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Solution

The fourth proportional to 804,172.80, 1,206,259.20 and 213,196.80 is: 319,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,172.80 : 1,206,259.20 = 213,196.80 : x
  2. Step 2: Convert to fraction form
    804,172.80/1,206,259.20 = 213,196.80/x
  3. Step 3: Cross multiply
    804,172.80x = 1,206,259.20 × 213,196.80
  4. Step 4: Simplify right side
    804,172.80x = 257,170,601,410.56
  5. Step 5: Solve for x
    x = 257,170,601,410.56/804,172.80
  6. Step 6: Final answer
    x = 319,795.20

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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.