Finding the Fourth Proportional to 1,788,438.14, 2,474,543.07 and 1,559,472.91
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Solution
The fourth proportional to 1,788,438.14, 2,474,543.07 and 1,559,472.91 is: 2,157,739.09
Step by Step Solution
- Step 1: Write the proportion equation
1,788,438.14 : 2,474,543.07 = 1,559,472.91 : x - Step 2: Convert to fraction form
1,788,438.14/2,474,543.07 = 1,559,472.91/x - Step 3: Cross multiply
1,788,438.14x = 2,474,543.07 × 1,559,472.91 - Step 4: Simplify right side
1,788,438.14x = 3,858,982,876,106.88 - Step 5: Solve for x
x = 3,858,982,876,106.88/1,788,438.14 - Step 6: Final answer
x = 2,157,739.09
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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.