Finding the Fourth Proportional to 515,799.21, 772,608.05 and 326,161.71
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Solution
The fourth proportional to 515,799.21, 772,608.05 and 326,161.71 is: 488,552.82
Step by Step Solution
- Step 1: Write the proportion equation
515,799.21 : 772,608.05 = 326,161.71 : x - Step 2: Convert to fraction form
515,799.21/772,608.05 = 326,161.71/x - Step 3: Cross multiply
515,799.21x = 772,608.05 × 326,161.71 - Step 4: Simplify right side
515,799.21x = 251,995,158,884.73 - Step 5: Solve for x
x = 251,995,158,884.73/515,799.21 - Step 6: Final answer
x = 488,552.82
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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.