Finding the Fourth Proportional to 691,154.70, 1,036,732.05 and 292,245.90
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Solution
The fourth proportional to 691,154.70, 1,036,732.05 and 292,245.90 is: 438,368.85
Step by Step Solution
- Step 1: Write the proportion equation
691,154.70 : 1,036,732.05 = 292,245.90 : x - Step 2: Convert to fraction form
691,154.70/1,036,732.05 = 292,245.90/x - Step 3: Cross multiply
691,154.70x = 1,036,732.05 × 292,245.90 - Step 4: Simplify right side
691,154.70x = 302,980,691,011.10 - Step 5: Solve for x
x = 302,980,691,011.10/691,154.70 - Step 6: Final answer
x = 438,368.85
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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.