Finding the Fourth Proportional to 664,649.62, 917,211.81 and 362,843.62
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Solution
The fourth proportional to 664,649.62, 917,211.81 and 362,843.62 is: 500,721.65
Step by Step Solution
- Step 1: Write the proportion equation
664,649.62 : 917,211.81 = 362,843.62 : x - Step 2: Convert to fraction form
664,649.62/917,211.81 = 362,843.62/x - Step 3: Cross multiply
664,649.62x = 917,211.81 × 362,843.62 - Step 4: Simplify right side
664,649.62x = 332,804,453,447.15 - Step 5: Solve for x
x = 332,804,453,447.15/664,649.62 - Step 6: Final answer
x = 500,721.65
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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.