Finding the Fourth Proportional to 420,753.79, 580,690.07 and 236,998.41
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Solution
The fourth proportional to 420,753.79, 580,690.07 and 236,998.41 is: 327,085.88
Step by Step Solution
- Step 1: Write the proportion equation
420,753.79 : 580,690.07 = 236,998.41 : x - Step 2: Convert to fraction form
420,753.79/580,690.07 = 236,998.41/x - Step 3: Cross multiply
420,753.79x = 580,690.07 × 236,998.41 - Step 4: Simplify right side
420,753.79x = 137,622,623,292.79 - Step 5: Solve for x
x = 137,622,623,292.79/420,753.79 - Step 6: Final answer
x = 327,085.88
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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.