Finding the Fourth Proportional to 989,704.80, 1,365,808.50 and 536,995.80
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Solution
The fourth proportional to 989,704.80, 1,365,808.50 and 536,995.80 is: 741,062.82
Step by Step Solution
- Step 1: Write the proportion equation
989,704.80 : 1,365,808.50 = 536,995.80 : x - Step 2: Convert to fraction form
989,704.80/1,365,808.50 = 536,995.80/x - Step 3: Cross multiply
989,704.80x = 1,365,808.50 × 536,995.80 - Step 4: Simplify right side
989,704.80x = 733,433,428,104.30 - Step 5: Solve for x
x = 733,433,428,104.30/989,704.80 - Step 6: Final answer
x = 741,062.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.