Finding the Fourth Proportional to 2,378,910.59, 3,282,808.66 and 1,291,158.81
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Solution
The fourth proportional to 2,378,910.59, 3,282,808.66 and 1,291,158.81 is: 1,781,751.42
Step by Step Solution
- Step 1: Write the proportion equation
2,378,910.59 : 3,282,808.66 = 1,291,158.81 : x - Step 2: Convert to fraction form
2,378,910.59/3,282,808.66 = 1,291,158.81/x - Step 3: Cross multiply
2,378,910.59x = 3,282,808.66 × 1,291,158.81 - Step 4: Simplify right side
2,378,910.59x = 4,238,627,322,903.30 - Step 5: Solve for x
x = 4,238,627,322,903.30/2,378,910.59 - Step 6: Final answer
x = 1,781,751.42
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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.