Home / 812,738.30-1,219,111.50-333,228.02

Finding the Fourth Proportional to 812,738.30, 1,219,111.50 and 333,228.02

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Solution

The fourth proportional to 812,738.30, 1,219,111.50 and 333,228.02 is: 499,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,738.30 : 1,219,111.50 = 333,228.02 : x
  2. Step 2: Convert to fraction form
    812,738.30/1,219,111.50 = 333,228.02/x
  3. Step 3: Cross multiply
    812,738.30x = 1,219,111.50 × 333,228.02
  4. Step 4: Simplify right side
    812,738.30x = 406,242,111,304.23
  5. Step 5: Solve for x
    x = 406,242,111,304.23/812,738.30
  6. Step 6: Final answer
    x = 499,843.69

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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.