Finding the Fourth Proportional to 1,508,121.68, 2,082,209.99 and 1,158,639.53
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Solution
The fourth proportional to 1,508,121.68, 2,082,209.99 and 1,158,639.53 is: 1,599,692.40
Step by Step Solution
- Step 1: Write the proportion equation
1,508,121.68 : 2,082,209.99 = 1,158,639.53 : x - Step 2: Convert to fraction form
1,508,121.68/2,082,209.99 = 1,158,639.53/x - Step 3: Cross multiply
1,508,121.68x = 2,082,209.99 × 1,158,639.53 - Step 4: Simplify right side
1,508,121.68x = 2,412,530,787,970.66 - Step 5: Solve for x
x = 2,412,530,787,970.66/1,508,121.68 - Step 6: Final answer
x = 1,599,692.40
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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.