Finding the Fourth Proportional to 3,605,621.27, 5,409,153.61 and 1,331,159.49
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Solution
The fourth proportional to 3,605,621.27, 5,409,153.61 and 1,331,159.49 is: 1,997,005.68
Step by Step Solution
- Step 1: Write the proportion equation
3,605,621.27 : 5,409,153.61 = 1,331,159.49 : x - Step 2: Convert to fraction form
3,605,621.27/5,409,153.61 = 1,331,159.49/x - Step 3: Cross multiply
3,605,621.27x = 5,409,153.61 × 1,331,159.49 - Step 4: Simplify right side
3,605,621.27x = 7,200,446,160,819.26 - Step 5: Solve for x
x = 7,200,446,160,819.26/3,605,621.27 - Step 6: Final answer
x = 1,997,005.68
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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.