Finding the Fourth Proportional to 1,690,390.26, 2,536,026.30 and 492,285.96
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Solution
The fourth proportional to 1,690,390.26, 2,536,026.30 and 492,285.96 is: 738,557.34
Step by Step Solution
- Step 1: Write the proportion equation
1,690,390.26 : 2,536,026.30 = 492,285.96 : x - Step 2: Convert to fraction form
1,690,390.26/2,536,026.30 = 492,285.96/x - Step 3: Cross multiply
1,690,390.26x = 2,536,026.30 × 492,285.96 - Step 4: Simplify right side
1,690,390.26x = 1,248,450,141,680.75 - Step 5: Solve for x
x = 1,248,450,141,680.75/1,690,390.26 - Step 6: Final answer
x = 738,557.34
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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.