Finding the Fourth Proportional to 1,271,074.84, 1,913,484.02 and 1,157,949.68
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Solution
The fourth proportional to 1,271,074.84, 1,913,484.02 and 1,157,949.68 is: 1,743,184.70
Step by Step Solution
- Step 1: Write the proportion equation
1,271,074.84 : 1,913,484.02 = 1,157,949.68 : x - Step 2: Convert to fraction form
1,271,074.84/1,913,484.02 = 1,157,949.68/x - Step 3: Cross multiply
1,271,074.84x = 1,913,484.02 × 1,157,949.68 - Step 4: Simplify right side
1,271,074.84x = 2,215,718,208,644.11 - Step 5: Solve for x
x = 2,215,718,208,644.11/1,271,074.84 - Step 6: Final answer
x = 1,743,184.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.