Finding the Fourth Proportional to 646,317.12, 969,918.36 and 225,592.96
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Solution
The fourth proportional to 646,317.12, 969,918.36 and 225,592.96 is: 338,543.95
Step by Step Solution
- Step 1: Write the proportion equation
646,317.12 : 969,918.36 = 225,592.96 : x - Step 2: Convert to fraction form
646,317.12/969,918.36 = 225,592.96/x - Step 3: Cross multiply
646,317.12x = 969,918.36 × 225,592.96 - Step 4: Simplify right side
646,317.12x = 218,806,753,790.75 - Step 5: Solve for x
x = 218,806,753,790.75/646,317.12 - Step 6: Final answer
x = 338,543.95
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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.