Finding the Fourth Proportional to 420,702.49, 580,567.12 and 229,714.53
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Solution
The fourth proportional to 420,702.49, 580,567.12 and 229,714.53 is: 317,004.79
Step by Step Solution
- Step 1: Write the proportion equation
420,702.49 : 580,567.12 = 229,714.53 : x - Step 2: Convert to fraction form
420,702.49/580,567.12 = 229,714.53/x - Step 3: Cross multiply
420,702.49x = 580,567.12 × 229,714.53 - Step 4: Simplify right side
420,702.49x = 133,364,703,104.25 - Step 5: Solve for x
x = 133,364,703,104.25/420,702.49 - Step 6: Final answer
x = 317,004.79
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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.