Finding the Fourth Proportional to 1,438,912.34, 1,985,646.98 and 794,318.70
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Solution
The fourth proportional to 1,438,912.34, 1,985,646.98 and 794,318.70 is: 1,096,131.07
Step by Step Solution
- Step 1: Write the proportion equation
1,438,912.34 : 1,985,646.98 = 794,318.70 : x - Step 2: Convert to fraction form
1,438,912.34/1,985,646.98 = 794,318.70/x - Step 3: Cross multiply
1,438,912.34x = 1,985,646.98 × 794,318.70 - Step 4: Simplify right side
1,438,912.34x = 1,577,236,523,840.93 - Step 5: Solve for x
x = 1,577,236,523,840.93/1,438,912.34 - Step 6: Final answer
x = 1,096,131.07
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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.