Finding the Fourth Proportional to 420,712.25, 580,585.01 and 229,725.63
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Solution
The fourth proportional to 420,712.25, 580,585.01 and 229,725.63 is: 317,022.52
Step by Step Solution
- Step 1: Write the proportion equation
420,712.25 : 580,585.01 = 229,725.63 : x - Step 2: Convert to fraction form
420,712.25/580,585.01 = 229,725.63/x - Step 3: Cross multiply
420,712.25x = 580,585.01 × 229,725.63 - Step 4: Simplify right side
420,712.25x = 133,375,256,042.18 - Step 5: Solve for x
x = 133,375,256,042.18/420,712.25 - Step 6: Final answer
x = 317,022.52
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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.