Finding the Fourth Proportional to 589,279.62, 813,206.01 and 321,007.62
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Solution
The fourth proportional to 589,279.62, 813,206.01 and 321,007.62 is: 442,990.59
Step by Step Solution
- Step 1: Write the proportion equation
589,279.62 : 813,206.01 = 321,007.62 : x - Step 2: Convert to fraction form
589,279.62/813,206.01 = 321,007.62/x - Step 3: Cross multiply
589,279.62x = 813,206.01 × 321,007.62 - Step 4: Simplify right side
589,279.62x = 261,045,325,839.80 - Step 5: Solve for x
x = 261,045,325,839.80/589,279.62 - Step 6: Final answer
x = 442,990.59
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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.