Finding the Fourth Proportional to 529,677.23, 730,968.72 and 287,976.08
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Solution
The fourth proportional to 529,677.23, 730,968.72 and 287,976.08 is: 397,414.68
Step by Step Solution
- Step 1: Write the proportion equation
529,677.23 : 730,968.72 = 287,976.08 : x - Step 2: Convert to fraction form
529,677.23/730,968.72 = 287,976.08/x - Step 3: Cross multiply
529,677.23x = 730,968.72 × 287,976.08 - Step 4: Simplify right side
529,677.23x = 210,501,506,588.22 - Step 5: Solve for x
x = 210,501,506,588.22/529,677.23 - Step 6: Final answer
x = 397,414.68
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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.