Finding the Fourth Proportional to 2,912,409.20, 4,367,447.40 and 1,018,175.60
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Solution
The fourth proportional to 2,912,409.20, 4,367,447.40 and 1,018,175.60 is: 1,526,855.63
Step by Step Solution
- Step 1: Write the proportion equation
2,912,409.20 : 4,367,447.40 = 1,018,175.60 : x - Step 2: Convert to fraction form
2,912,409.20/4,367,447.40 = 1,018,175.60/x - Step 3: Cross multiply
2,912,409.20x = 4,367,447.40 × 1,018,175.60 - Step 4: Simplify right side
2,912,409.20x = 4,446,828,376,963.44 - Step 5: Solve for x
x = 4,446,828,376,963.44/2,912,409.20 - Step 6: Final answer
x = 1,526,855.63
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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.