Finding the Fourth Proportional to 426,817.62, 589,089.78 and 281,368.08
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Solution
The fourth proportional to 426,817.62, 589,089.78 and 281,368.08 is: 388,341.65
Step by Step Solution
- Step 1: Write the proportion equation
426,817.62 : 589,089.78 = 281,368.08 : x - Step 2: Convert to fraction form
426,817.62/589,089.78 = 281,368.08/x - Step 3: Cross multiply
426,817.62x = 589,089.78 × 281,368.08 - Step 4: Simplify right side
426,817.62x = 165,751,060,346.22 - Step 5: Solve for x
x = 165,751,060,346.22/426,817.62 - Step 6: Final answer
x = 388,341.65
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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.