Finding the Fourth Proportional to 393,473.19, 589,956.84 and 258,377.65
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Solution
The fourth proportional to 393,473.19, 589,956.84 and 258,377.65 is: 387,400.37
Step by Step Solution
- Step 1: Write the proportion equation
393,473.19 : 589,956.84 = 258,377.65 : x - Step 2: Convert to fraction form
393,473.19/589,956.84 = 258,377.65/x - Step 3: Cross multiply
393,473.19x = 589,956.84 × 258,377.65 - Step 4: Simplify right side
393,473.19x = 152,431,661,172.42 - Step 5: Solve for x
x = 152,431,661,172.42/393,473.19 - Step 6: Final answer
x = 387,400.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.