Finding the Fourth Proportional to 393,079.80, 589,619.70 and 108,769.80
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Solution
The fourth proportional to 393,079.80, 589,619.70 and 108,769.80 is: 163,154.70
Step by Step Solution
- Step 1: Write the proportion equation
393,079.80 : 589,619.70 = 108,769.80 : x - Step 2: Convert to fraction form
393,079.80/589,619.70 = 108,769.80/x - Step 3: Cross multiply
393,079.80x = 589,619.70 × 108,769.80 - Step 4: Simplify right side
393,079.80x = 64,132,816,845.06 - Step 5: Solve for x
x = 64,132,816,845.06/393,079.80 - Step 6: Final answer
x = 163,154.70
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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.