Finding the Fourth Proportional to 2,542,922.85, 3,509,298.50 and 1,397,032.05
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Solution
The fourth proportional to 2,542,922.85, 3,509,298.50 and 1,397,032.05 is: 1,927,939.92
Step by Step Solution
- Step 1: Write the proportion equation
2,542,922.85 : 3,509,298.50 = 1,397,032.05 : x - Step 2: Convert to fraction form
2,542,922.85/3,509,298.50 = 1,397,032.05/x - Step 3: Cross multiply
2,542,922.85x = 3,509,298.50 × 1,397,032.05 - Step 4: Simplify right side
2,542,922.85x = 4,902,602,470,531.76 - Step 5: Solve for x
x = 4,902,602,470,531.76/2,542,922.85 - Step 6: Final answer
x = 1,927,939.92
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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.