Finding the Fourth Proportional to 1,438,972.36, 1,985,729.70 and 794,378.68
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Solution
The fourth proportional to 1,438,972.36, 1,985,729.70 and 794,378.68 is: 1,096,213.79
Step by Step Solution
- Step 1: Write the proportion equation
1,438,972.36 : 1,985,729.70 = 794,378.68 : x - Step 2: Convert to fraction form
1,438,972.36/1,985,729.70 = 794,378.68/x - Step 3: Cross multiply
1,438,972.36x = 1,985,729.70 × 794,378.68 - Step 4: Simplify right side
1,438,972.36x = 1,577,421,337,922.80 - Step 5: Solve for x
x = 1,577,421,337,922.80/1,438,972.36 - Step 6: Final answer
x = 1,096,213.79
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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.