Finding the Fourth Proportional to 1,442,720.70, 1,990,596.87 and 932,809.50
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Solution
The fourth proportional to 1,442,720.70, 1,990,596.87 and 932,809.50 is: 1,287,045.84
Step by Step Solution
- Step 1: Write the proportion equation
1,442,720.70 : 1,990,596.87 = 932,809.50 : x - Step 2: Convert to fraction form
1,442,720.70/1,990,596.87 = 932,809.50/x - Step 3: Cross multiply
1,442,720.70x = 1,990,596.87 × 932,809.50 - Step 4: Simplify right side
1,442,720.70x = 1,856,847,671,006.27 - Step 5: Solve for x
x = 1,856,847,671,006.27/1,442,720.70 - Step 6: Final answer
x = 1,287,045.84
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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.