Finding the Fourth Proportional to 777,408.12, 1,072,835.16 and 433,234.68
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Solution
The fourth proportional to 777,408.12, 1,072,835.16 and 433,234.68 is: 597,870.52
Step by Step Solution
- Step 1: Write the proportion equation
777,408.12 : 1,072,835.16 = 433,234.68 : x - Step 2: Convert to fraction form
777,408.12/1,072,835.16 = 433,234.68/x - Step 3: Cross multiply
777,408.12x = 1,072,835.16 × 433,234.68 - Step 4: Simplify right side
777,408.12x = 464,789,397,235.35 - Step 5: Solve for x
x = 464,789,397,235.35/777,408.12 - Step 6: Final answer
x = 597,870.52
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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.