Finding the Fourth Proportional to 1,438,910.84, 1,985,644.91 and 794,317.20
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Solution
The fourth proportional to 1,438,910.84, 1,985,644.91 and 794,317.20 is: 1,096,129.00
Step by Step Solution
- Step 1: Write the proportion equation
1,438,910.84 : 1,985,644.91 = 794,317.20 : x - Step 2: Convert to fraction form
1,438,910.84/1,985,644.91 = 794,317.20/x - Step 3: Cross multiply
1,438,910.84x = 1,985,644.91 × 794,317.20 - Step 4: Simplify right side
1,438,910.84x = 1,577,231,901,133.87 - Step 5: Solve for x
x = 1,577,231,901,133.87/1,438,910.84 - Step 6: Final answer
x = 1,096,129.00
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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.