Finding the Fourth Proportional to 529,632.19, 730,897.18 and 287,915.23
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Solution
The fourth proportional to 529,632.19, 730,897.18 and 287,915.23 is: 397,325.60
Step by Step Solution
- Step 1: Write the proportion equation
529,632.19 : 730,897.18 = 287,915.23 : x - Step 2: Convert to fraction form
529,632.19/730,897.18 = 287,915.23/x - Step 3: Cross multiply
529,632.19x = 730,897.18 × 287,915.23 - Step 4: Simplify right side
529,632.19x = 210,436,426,419.23 - Step 5: Solve for x
x = 210,436,426,419.23/529,632.19 - Step 6: Final answer
x = 397,325.60
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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.