Finding the Fourth Proportional to 529,578.98, 730,823.88 and 287,862.12
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Solution
The fourth proportional to 529,578.98, 730,823.88 and 287,862.12 is: 397,252.38
Step by Step Solution
- Step 1: Write the proportion equation
529,578.98 : 730,823.88 = 287,862.12 : x - Step 2: Convert to fraction form
529,578.98/730,823.88 = 287,862.12/x - Step 3: Cross multiply
529,578.98x = 730,823.88 × 287,862.12 - Step 4: Simplify right side
529,578.98x = 210,376,511,443.43 - Step 5: Solve for x
x = 210,376,511,443.43/529,578.98 - Step 6: Final answer
x = 397,252.38
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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.