Finding the Fourth Proportional to 1,828,612.20, 2,738,252.70 and 1,455,364.20
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Solution
The fourth proportional to 1,828,612.20, 2,738,252.70 and 1,455,364.20 is: 2,179,333.02
Step by Step Solution
- Step 1: Write the proportion equation
1,828,612.20 : 2,738,252.70 = 1,455,364.20 : x - Step 2: Convert to fraction form
1,828,612.20/2,738,252.70 = 1,455,364.20/x - Step 3: Cross multiply
1,828,612.20x = 2,738,252.70 × 1,455,364.20 - Step 4: Simplify right side
1,828,612.20x = 3,985,154,950,133.34 - Step 5: Solve for x
x = 3,985,154,950,133.34/1,828,612.20 - Step 6: Final answer
x = 2,179,333.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.