Finding the Fourth Proportional to 986,505.09, 1,479,808.67 and 312,657.99
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Solution
The fourth proportional to 986,505.09, 1,479,808.67 and 312,657.99 is: 469,003.16
Step by Step Solution
- Step 1: Write the proportion equation
986,505.09 : 1,479,808.67 = 312,657.99 : x - Step 2: Convert to fraction form
986,505.09/1,479,808.67 = 312,657.99/x - Step 3: Cross multiply
986,505.09x = 1,479,808.67 × 312,657.99 - Step 4: Simplify right side
986,505.09x = 462,674,002,783.48 - Step 5: Solve for x
x = 462,674,002,783.48/986,505.09 - Step 6: Final answer
x = 469,003.16
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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.