Finding the Fourth Proportional to 1,808,198.70, 2,712,298.05 and 1,409,138.70
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Solution
The fourth proportional to 1,808,198.70, 2,712,298.05 and 1,409,138.70 is: 2,113,708.05
Step by Step Solution
- Step 1: Write the proportion equation
1,808,198.70 : 2,712,298.05 = 1,409,138.70 : x - Step 2: Convert to fraction form
1,808,198.70/2,712,298.05 = 1,409,138.70/x - Step 3: Cross multiply
1,808,198.70x = 2,712,298.05 × 1,409,138.70 - Step 4: Simplify right side
1,808,198.70x = 3,822,004,148,189.53 - Step 5: Solve for x
x = 3,822,004,148,189.53/1,808,198.70 - Step 6: Final answer
x = 2,113,708.05
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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.