Finding the Fourth Proportional to 1,074,438.74, 1,611,103.49 and 316,181.75
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Solution
The fourth proportional to 1,074,438.74, 1,611,103.49 and 316,181.75 is: 474,109.41
Step by Step Solution
- Step 1: Write the proportion equation
1,074,438.74 : 1,611,103.49 = 316,181.75 : x - Step 2: Convert to fraction form
1,074,438.74/1,611,103.49 = 316,181.75/x - Step 3: Cross multiply
1,074,438.74x = 1,611,103.49 × 316,181.75 - Step 4: Simplify right side
1,074,438.74x = 509,401,511,262.88 - Step 5: Solve for x
x = 509,401,511,262.88/1,074,438.74 - Step 6: Final answer
x = 474,109.41
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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.