Finding the Fourth Proportional to 612,448.26, 918,859.29 and 313,139.07
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Solution
The fourth proportional to 612,448.26, 918,859.29 and 313,139.07 is: 469,804.17
Step by Step Solution
- Step 1: Write the proportion equation
612,448.26 : 918,859.29 = 313,139.07 : x - Step 2: Convert to fraction form
612,448.26/918,859.29 = 313,139.07/x - Step 3: Cross multiply
612,448.26x = 918,859.29 × 313,139.07 - Step 4: Simplify right side
612,448.26x = 287,730,743,531.46 - Step 5: Solve for x
x = 287,730,743,531.46/612,448.26 - Step 6: Final answer
x = 469,804.17
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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.