Finding the Fourth Proportional to 3,331,678.40, 4,605,464.16 and 2,972,660.48
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Solution
The fourth proportional to 3,331,678.40, 4,605,464.16 and 2,972,660.48 is: 4,109,184.52
Step by Step Solution
- Step 1: Write the proportion equation
3,331,678.40 : 4,605,464.16 = 2,972,660.48 : x - Step 2: Convert to fraction form
3,331,678.40/4,605,464.16 = 2,972,660.48/x - Step 3: Cross multiply
3,331,678.40x = 4,605,464.16 × 2,972,660.48 - Step 4: Simplify right side
3,331,678.40x = 13,690,481,300,488.40 - Step 5: Solve for x
x = 13,690,481,300,488.40/3,331,678.40 - Step 6: Final answer
x = 4,109,184.52
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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.