Finding the Fourth Proportional to 1,036,757.30, 1,555,135.95 and 438,394.10
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Solution
The fourth proportional to 1,036,757.30, 1,555,135.95 and 438,394.10 is: 657,591.15
Step by Step Solution
- Step 1: Write the proportion equation
1,036,757.30 : 1,555,135.95 = 438,394.10 : x - Step 2: Convert to fraction form
1,036,757.30/1,555,135.95 = 438,394.10/x - Step 3: Cross multiply
1,036,757.30x = 1,555,135.95 × 438,394.10 - Step 4: Simplify right side
1,036,757.30x = 681,762,425,177.90 - Step 5: Solve for x
x = 681,762,425,177.90/1,036,757.30 - Step 6: Final answer
x = 657,591.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.