Finding the Fourth Proportional to 4,320,716.80, 6,481,996.80 and 1,329,203.20
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Solution
The fourth proportional to 4,320,716.80, 6,481,996.80 and 1,329,203.20 is: 1,994,088.32
Step by Step Solution
- Step 1: Write the proportion equation
4,320,716.80 : 6,481,996.80 = 1,329,203.20 : x - Step 2: Convert to fraction form
4,320,716.80/6,481,996.80 = 1,329,203.20/x - Step 3: Cross multiply
4,320,716.80x = 6,481,996.80 × 1,329,203.20 - Step 4: Simplify right side
4,320,716.80x = 8,615,890,888,949.76 - Step 5: Solve for x
x = 8,615,890,888,949.76/4,320,716.80 - Step 6: Final answer
x = 1,994,088.32
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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.