Finding the Fourth Proportional to 782,234.68, 1,079,394.60 and 438,022.76
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Solution
The fourth proportional to 782,234.68, 1,079,394.60 and 438,022.76 is: 604,421.43
Step by Step Solution
- Step 1: Write the proportion equation
782,234.68 : 1,079,394.60 = 438,022.76 : x - Step 2: Convert to fraction form
782,234.68/1,079,394.60 = 438,022.76/x - Step 3: Cross multiply
782,234.68x = 1,079,394.60 × 438,022.76 - Step 4: Simplify right side
782,234.68x = 472,799,401,821.10 - Step 5: Solve for x
x = 472,799,401,821.10/782,234.68 - Step 6: Final answer
x = 604,421.43
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1.5x scale
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.