Finding the Fourth Proportional to 986,618.76, 1,479,328.86 and 386,861.37
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Solution
The fourth proportional to 986,618.76, 1,479,328.86 and 386,861.37 is: 580,057.07
Step by Step Solution
- Step 1: Write the proportion equation
986,618.76 : 1,479,328.86 = 386,861.37 : x - Step 2: Convert to fraction form
986,618.76/1,479,328.86 = 386,861.37/x - Step 3: Cross multiply
986,618.76x = 1,479,328.86 × 386,861.37 - Step 4: Simplify right side
986,618.76x = 572,295,189,460.14 - Step 5: Solve for x
x = 572,295,189,460.14/986,618.76 - Step 6: Final answer
x = 580,057.07
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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.