Finding the Fourth Proportional to 2,215,392.36, 3,057,245.70 and 1,285,280.70
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Solution
The fourth proportional to 2,215,392.36, 3,057,245.70 and 1,285,280.70 is: 1,773,689.83
Step by Step Solution
- Step 1: Write the proportion equation
2,215,392.36 : 3,057,245.70 = 1,285,280.70 : x - Step 2: Convert to fraction form
2,215,392.36/3,057,245.70 = 1,285,280.70/x - Step 3: Cross multiply
2,215,392.36x = 3,057,245.70 × 1,285,280.70 - Step 4: Simplify right side
2,215,392.36x = 3,929,418,893,367.99 - Step 5: Solve for x
x = 3,929,418,893,367.99/2,215,392.36 - Step 6: Final answer
x = 1,773,689.83
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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.