Finding the Fourth Proportional to 2,135,121.90, 3,201,646.05 and 1,187,486.70
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Solution
The fourth proportional to 2,135,121.90, 3,201,646.05 and 1,187,486.70 is: 1,780,653.41
Step by Step Solution
- Step 1: Write the proportion equation
2,135,121.90 : 3,201,646.05 = 1,187,486.70 : x - Step 2: Convert to fraction form
2,135,121.90/3,201,646.05 = 1,187,486.70/x - Step 3: Cross multiply
2,135,121.90x = 3,201,646.05 × 1,187,486.70 - Step 4: Simplify right side
2,135,121.90x = 3,801,912,102,482.53 - Step 5: Solve for x
x = 3,801,912,102,482.53/2,135,121.90 - Step 6: Final answer
x = 1,780,653.41
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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.