Finding the Fourth Proportional to 2,305,215.48, 3,181,182.49 and 1,272,787.61
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Solution
The fourth proportional to 2,305,215.48, 3,181,182.49 and 1,272,787.61 is: 1,756,438.68
Step by Step Solution
- Step 1: Write the proportion equation
2,305,215.48 : 3,181,182.49 = 1,272,787.61 : x - Step 2: Convert to fraction form
2,305,215.48/3,181,182.49 = 1,272,787.61/x - Step 3: Cross multiply
2,305,215.48x = 3,181,182.49 × 1,272,787.61 - Step 4: Simplify right side
2,305,215.48x = 4,048,969,644,106.02 - Step 5: Solve for x
x = 4,048,969,644,106.02/2,305,215.48 - Step 6: Final answer
x = 1,756,438.68
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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.