Finding the Fourth Proportional to 529,703.42, 730,987.07 and 287,985.98
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Solution
The fourth proportional to 529,703.42, 730,987.07 and 287,985.98 is: 397,418.66
Step by Step Solution
- Step 1: Write the proportion equation
529,703.42 : 730,987.07 = 287,985.98 : x - Step 2: Convert to fraction form
529,703.42/730,987.07 = 287,985.98/x - Step 3: Cross multiply
529,703.42x = 730,987.07 × 287,985.98 - Step 4: Simplify right side
529,703.42x = 210,514,022,626.41 - Step 5: Solve for x
x = 210,514,022,626.41/529,703.42 - Step 6: Final answer
x = 397,418.66
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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.