Finding the Fourth Proportional to 878,704.19, 1,318,805.19 and 346,598.90
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Solution
The fourth proportional to 878,704.19, 1,318,805.19 and 346,598.90 is: 520,193.75
Step by Step Solution
- Step 1: Write the proportion equation
878,704.19 : 1,318,805.19 = 346,598.90 : x - Step 2: Convert to fraction form
878,704.19/1,318,805.19 = 346,598.90/x - Step 3: Cross multiply
878,704.19x = 1,318,805.19 × 346,598.90 - Step 4: Simplify right side
878,704.19x = 457,096,428,168.29 - Step 5: Solve for x
x = 457,096,428,168.29/878,704.19 - Step 6: Final answer
x = 520,193.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.