Finding the Fourth Proportional to 777,480.14, 1,072,927.96 and 433,338.26
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Solution
The fourth proportional to 777,480.14, 1,072,927.96 and 433,338.26 is: 598,009.79
Step by Step Solution
- Step 1: Write the proportion equation
777,480.14 : 1,072,927.96 = 433,338.26 : x - Step 2: Convert to fraction form
777,480.14/1,072,927.96 = 433,338.26/x - Step 3: Cross multiply
777,480.14x = 1,072,927.96 × 433,338.26 - Step 4: Simplify right side
777,480.14x = 464,940,735,291.75 - Step 5: Solve for x
x = 464,940,735,291.75/777,480.14 - Step 6: Final answer
x = 598,009.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.