Finding the Fourth Proportional to 3,438,187.66, 5,158,312.71 and 1,387,793.14
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Solution
The fourth proportional to 3,438,187.66, 5,158,312.71 and 1,387,793.14 is: 2,082,105.95
Step by Step Solution
- Step 1: Write the proportion equation
3,438,187.66 : 5,158,312.71 = 1,387,793.14 : x - Step 2: Convert to fraction form
3,438,187.66/5,158,312.71 = 1,387,793.14/x - Step 3: Cross multiply
3,438,187.66x = 5,158,312.71 × 1,387,793.14 - Step 4: Simplify right side
3,438,187.66x = 7,158,670,992,912.81 - Step 5: Solve for x
x = 7,158,670,992,912.81/3,438,187.66 - Step 6: Final answer
x = 2,082,105.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.