Finding the Fourth Proportional to 3,617,219.12, 4,991,742.68 and 1,985,654.24
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Solution
The fourth proportional to 3,617,219.12, 4,991,742.68 and 1,985,654.24 is: 2,740,192.04
Step by Step Solution
- Step 1: Write the proportion equation
3,617,219.12 : 4,991,742.68 = 1,985,654.24 : x - Step 2: Convert to fraction form
3,617,219.12/4,991,742.68 = 1,985,654.24/x - Step 3: Cross multiply
3,617,219.12x = 4,991,742.68 × 1,985,654.24 - Step 4: Simplify right side
3,617,219.12x = 9,911,875,020,082.05 - Step 5: Solve for x
x = 9,911,875,020,082.05/3,617,219.12 - Step 6: Final answer
x = 2,740,192.04
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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.