Finding the Fourth Proportional to 1,438,960.84, 1,985,768.90 and 794,381.92
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Solution
The fourth proportional to 1,438,960.84, 1,985,768.90 and 794,381.92 is: 1,096,248.67
Step by Step Solution
- Step 1: Write the proportion equation
1,438,960.84 : 1,985,768.90 = 794,381.92 : x - Step 2: Convert to fraction form
1,438,960.84/1,985,768.90 = 794,381.92/x - Step 3: Cross multiply
1,438,960.84x = 1,985,768.90 × 794,381.92 - Step 4: Simplify right side
1,438,960.84x = 1,577,458,911,458.29 - Step 5: Solve for x
x = 1,577,458,911,458.29/1,438,960.84 - Step 6: Final answer
x = 1,096,248.67
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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.