Finding the Fourth Proportional to 878,690.16, 1,318,042.26 and 575,340.12
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Solution
The fourth proportional to 878,690.16, 1,318,042.26 and 575,340.12 is: 863,014.78
Step by Step Solution
- Step 1: Write the proportion equation
878,690.16 : 1,318,042.26 = 575,340.12 : x - Step 2: Convert to fraction form
878,690.16/1,318,042.26 = 575,340.12/x - Step 3: Cross multiply
878,690.16x = 1,318,042.26 × 575,340.12 - Step 4: Simplify right side
878,690.16x = 758,322,592,033.47 - Step 5: Solve for x
x = 758,322,592,033.47/878,690.16 - Step 6: Final answer
x = 863,014.78
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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.