Finding the Fourth Proportional to 529,539.10, 730,764.12 and 287,821.74
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Solution
The fourth proportional to 529,539.10, 730,764.12 and 287,821.74 is: 397,194.09
Step by Step Solution
- Step 1: Write the proportion equation
529,539.10 : 730,764.12 = 287,821.74 : x - Step 2: Convert to fraction form
529,539.10/730,764.12 = 287,821.74/x - Step 3: Cross multiply
529,539.10x = 730,764.12 × 287,821.74 - Step 4: Simplify right side
529,539.10x = 210,329,800,547.97 - Step 5: Solve for x
x = 210,329,800,547.97/529,539.10 - Step 6: Final answer
x = 397,194.09
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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.