Finding the Fourth Proportional to 809,789.76, 1,214,560.13 and 270,055.49
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Solution
The fourth proportional to 809,789.76, 1,214,560.13 and 270,055.49 is: 405,041.70
Step by Step Solution
- Step 1: Write the proportion equation
809,789.76 : 1,214,560.13 = 270,055.49 : x - Step 2: Convert to fraction form
809,789.76/1,214,560.13 = 270,055.49/x - Step 3: Cross multiply
809,789.76x = 1,214,560.13 × 270,055.49 - Step 4: Simplify right side
809,789.76x = 327,998,623,618.54 - Step 5: Solve for x
x = 327,998,623,618.54/809,789.76 - Step 6: Final answer
x = 405,041.70
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1.5x scale
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.