Finding the Fourth Proportional to 658,648.64, 988,197.26 and 355,072.13
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Solution
The fourth proportional to 658,648.64, 988,197.26 and 355,072.13 is: 532,729.12
Step by Step Solution
- Step 1: Write the proportion equation
658,648.64 : 988,197.26 = 355,072.13 : x - Step 2: Convert to fraction form
658,648.64/988,197.26 = 355,072.13/x - Step 3: Cross multiply
658,648.64x = 988,197.26 × 355,072.13 - Step 4: Simplify right side
658,648.64x = 350,881,309,326.54 - Step 5: Solve for x
x = 350,881,309,326.54/658,648.64 - Step 6: Final answer
x = 532,729.12
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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.