Finding the Fourth Proportional to 5,281,612.29, 7,288,717.87 and 2,958,485.21
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Solution
The fourth proportional to 5,281,612.29, 7,288,717.87 and 2,958,485.21 is: 4,082,761.63
Step by Step Solution
- Step 1: Write the proportion equation
5,281,612.29 : 7,288,717.87 = 2,958,485.21 : x - Step 2: Convert to fraction form
5,281,612.29/7,288,717.87 = 2,958,485.21/x - Step 3: Cross multiply
5,281,612.29x = 7,288,717.87 × 2,958,485.21 - Step 4: Simplify right side
5,281,612.29x = 21,563,564,012,844.91 - Step 5: Solve for x
x = 21,563,564,012,844.91/5,281,612.29 - Step 6: Final answer
x = 4,082,761.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.