Finding the Fourth Proportional to 493,482.92, 680,968.42 and 278,644.19
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Solution
The fourth proportional to 493,482.92, 680,968.42 and 278,644.19 is: 384,507.52
Step by Step Solution
- Step 1: Write the proportion equation
493,482.92 : 680,968.42 = 278,644.19 : x - Step 2: Convert to fraction form
493,482.92/680,968.42 = 278,644.19/x - Step 3: Cross multiply
493,482.92x = 680,968.42 × 278,644.19 - Step 4: Simplify right side
493,482.92x = 189,747,889,705.03 - Step 5: Solve for x
x = 189,747,889,705.03/493,482.92 - Step 6: Final answer
x = 384,507.52
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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.