Finding the Fourth Proportional to 724,412.28, 1,086,618.42 and 324,835.08
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Solution
The fourth proportional to 724,412.28, 1,086,618.42 and 324,835.08 is: 487,252.62
Step by Step Solution
- Step 1: Write the proportion equation
724,412.28 : 1,086,618.42 = 324,835.08 : x - Step 2: Convert to fraction form
724,412.28/1,086,618.42 = 324,835.08/x - Step 3: Cross multiply
724,412.28x = 1,086,618.42 × 324,835.08 - Step 4: Simplify right side
724,412.28x = 352,971,781,390.17 - Step 5: Solve for x
x = 352,971,781,390.17/724,412.28 - Step 6: Final answer
x = 487,252.62
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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.