Finding the Fourth Proportional to 1,438,119.21, 1,984,602.18 and 793,538.91
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Solution
The fourth proportional to 1,438,119.21, 1,984,602.18 and 793,538.91 is: 1,095,082.41
Step by Step Solution
- Step 1: Write the proportion equation
1,438,119.21 : 1,984,602.18 = 793,538.91 : x - Step 2: Convert to fraction form
1,438,119.21/1,984,602.18 = 793,538.91/x - Step 3: Cross multiply
1,438,119.21x = 1,984,602.18 × 793,538.91 - Step 4: Simplify right side
1,438,119.21x = 1,574,859,050,700.82 - Step 5: Solve for x
x = 1,574,859,050,700.82/1,438,119.21 - Step 6: Final answer
x = 1,095,082.41
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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.