Finding the Fourth Proportional to 529,702.91, 730,986.38 and 287,985.48
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Solution
The fourth proportional to 529,702.91, 730,986.38 and 287,985.48 is: 397,417.99
Step by Step Solution
- Step 1: Write the proportion equation
529,702.91 : 730,986.38 = 287,985.48 : x - Step 2: Convert to fraction form
529,702.91/730,986.38 = 287,985.48/x - Step 3: Cross multiply
529,702.91x = 730,986.38 × 287,985.48 - Step 4: Simplify right side
529,702.91x = 210,513,463,517.76 - Step 5: Solve for x
x = 210,513,463,517.76/529,702.91 - Step 6: Final answer
x = 397,417.99
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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.