Finding the Fourth Proportional to 723,986.48, 1,085,415.96 and 344,712.08
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Solution
The fourth proportional to 723,986.48, 1,085,415.96 and 344,712.08 is: 516,799.70
Step by Step Solution
- Step 1: Write the proportion equation
723,986.48 : 1,085,415.96 = 344,712.08 : x - Step 2: Convert to fraction form
723,986.48/1,085,415.96 = 344,712.08/x - Step 3: Cross multiply
723,986.48x = 1,085,415.96 × 344,712.08 - Step 4: Simplify right side
723,986.48x = 374,155,993,236.80 - Step 5: Solve for x
x = 374,155,993,236.80/723,986.48 - Step 6: Final answer
x = 516,799.70
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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.