Finding the Fourth Proportional to 2,279,737.81, 3,145,523.12 and 1,361,787.26
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Solution
The fourth proportional to 2,279,737.81, 3,145,523.12 and 1,361,787.26 is: 1,878,958.74
Step by Step Solution
- Step 1: Write the proportion equation
2,279,737.81 : 3,145,523.12 = 1,361,787.26 : x - Step 2: Convert to fraction form
2,279,737.81/3,145,523.12 = 1,361,787.26/x - Step 3: Cross multiply
2,279,737.81x = 3,145,523.12 × 1,361,787.26 - Step 4: Simplify right side
2,279,737.81x = 4,283,533,293,421.60 - Step 5: Solve for x
x = 4,283,533,293,421.60/2,279,737.81 - Step 6: Final answer
x = 1,878,958.74
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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.