Finding the Fourth Proportional to 493,063.88, 680,212.08 and 289,011.36
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Solution
The fourth proportional to 493,063.88, 680,212.08 and 289,011.36 is: 398,709.02
Step by Step Solution
- Step 1: Write the proportion equation
493,063.88 : 680,212.08 = 289,011.36 : x - Step 2: Convert to fraction form
493,063.88/680,212.08 = 289,011.36/x - Step 3: Cross multiply
493,063.88x = 680,212.08 × 289,011.36 - Step 4: Simplify right side
493,063.88x = 196,589,018,329.23 - Step 5: Solve for x
x = 196,589,018,329.23/493,063.88 - Step 6: Final answer
x = 398,709.02
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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.