Finding the Fourth Proportional to 529,521.58, 730,747.20 and 287,804.08
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Solution
The fourth proportional to 529,521.58, 730,747.20 and 287,804.08 is: 397,173.66
Step by Step Solution
- Step 1: Write the proportion equation
529,521.58 : 730,747.20 = 287,804.08 : x - Step 2: Convert to fraction form
529,521.58/730,747.20 = 287,804.08/x - Step 3: Cross multiply
529,521.58x = 730,747.20 × 287,804.08 - Step 4: Simplify right side
529,521.58x = 210,312,025,608.58 - Step 5: Solve for x
x = 210,312,025,608.58/529,521.58 - Step 6: Final answer
x = 397,173.66
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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.