Finding the Fourth Proportional to 392,873.13, 589,313.40 and 215,283.18
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Solution
The fourth proportional to 392,873.13, 589,313.40 and 215,283.18 is: 322,926.80
Step by Step Solution
- Step 1: Write the proportion equation
392,873.13 : 589,313.40 = 215,283.18 : x - Step 2: Convert to fraction form
392,873.13/589,313.40 = 215,283.18/x - Step 3: Cross multiply
392,873.13x = 589,313.40 × 215,283.18 - Step 4: Simplify right side
392,873.13x = 126,869,262,768.61 - Step 5: Solve for x
x = 126,869,262,768.61/392,873.13 - Step 6: Final answer
x = 322,926.80
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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.