Finding the Fourth Proportional to 1,657,122.51, 2,473,586.16 and 1,421,976.27
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Solution
The fourth proportional to 1,657,122.51, 2,473,586.16 and 1,421,976.27 is: 2,122,583.45
Step by Step Solution
- Step 1: Write the proportion equation
1,657,122.51 : 2,473,586.16 = 1,421,976.27 : x - Step 2: Convert to fraction form
1,657,122.51/2,473,586.16 = 1,421,976.27/x - Step 3: Cross multiply
1,657,122.51x = 2,473,586.16 × 1,421,976.27 - Step 4: Simplify right side
1,657,122.51x = 3,517,380,821,320.42 - Step 5: Solve for x
x = 3,517,380,821,320.42/1,657,122.51 - Step 6: Final answer
x = 2,122,583.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.