Finding the Fourth Proportional to 489,178.24, 674,151.87 and 381,577.84
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Solution
The fourth proportional to 489,178.24, 674,151.87 and 381,577.84 is: 525,864.39
Step by Step Solution
- Step 1: Write the proportion equation
489,178.24 : 674,151.87 = 381,577.84 : x - Step 2: Convert to fraction form
489,178.24/674,151.87 = 381,577.84/x - Step 3: Cross multiply
489,178.24x = 674,151.87 × 381,577.84 - Step 4: Simplify right side
489,178.24x = 257,241,414,386.56 - Step 5: Solve for x
x = 257,241,414,386.56/489,178.24 - Step 6: Final answer
x = 525,864.39
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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.