Finding the Fourth Proportional to 2,752,123.20, 4,128,184.80 and 2,185,252.80
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Solution
The fourth proportional to 2,752,123.20, 4,128,184.80 and 2,185,252.80 is: 3,277,879.20
Step by Step Solution
- Step 1: Write the proportion equation
2,752,123.20 : 4,128,184.80 = 2,185,252.80 : x - Step 2: Convert to fraction form
2,752,123.20/4,128,184.80 = 2,185,252.80/x - Step 3: Cross multiply
2,752,123.20x = 4,128,184.80 × 2,185,252.80 - Step 4: Simplify right side
2,752,123.20x = 9,021,127,393,117.44 - Step 5: Solve for x
x = 9,021,127,393,117.44/2,752,123.20 - Step 6: Final answer
x = 3,277,879.20
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1.5x scale
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.