Finding the Fourth Proportional to 2,115,552.49, 2,919,380.59 and 1,148,660.66
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Solution
The fourth proportional to 2,115,552.49, 2,919,380.59 and 1,148,660.66 is: 1,585,107.26
Step by Step Solution
- Step 1: Write the proportion equation
2,115,552.49 : 2,919,380.59 = 1,148,660.66 : x - Step 2: Convert to fraction form
2,115,552.49/2,919,380.59 = 1,148,660.66/x - Step 3: Cross multiply
2,115,552.49x = 2,919,380.59 × 1,148,660.66 - Step 4: Simplify right side
2,115,552.49x = 3,353,377,625,257.37 - Step 5: Solve for x
x = 3,353,377,625,257.37/2,115,552.49 - Step 6: Final answer
x = 1,585,107.26
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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.