Home / 815,855.09-1,223,362.44-366,190.47

Finding the Fourth Proportional to 815,855.09, 1,223,362.44 and 366,190.47

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Solution

The fourth proportional to 815,855.09, 1,223,362.44 and 366,190.47 is: 549,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,855.09 : 1,223,362.44 = 366,190.47 : x
  2. Step 2: Convert to fraction form
    815,855.09/1,223,362.44 = 366,190.47/x
  3. Step 3: Cross multiply
    815,855.09x = 1,223,362.44 × 366,190.47
  4. Step 4: Simplify right side
    815,855.09x = 447,983,666,883.95
  5. Step 5: Solve for x
    x = 447,983,666,883.95/815,855.09
  6. Step 6: Final answer
    x = 549,097.11

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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.