Finding the Fourth Proportional to 783,778.36, 1,175,664.84 and 215,165.56
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Solution
The fourth proportional to 783,778.36, 1,175,664.84 and 215,165.56 is: 322,747.60
Step by Step Solution
- Step 1: Write the proportion equation
783,778.36 : 1,175,664.84 = 215,165.56 : x - Step 2: Convert to fraction form
783,778.36/1,175,664.84 = 215,165.56/x - Step 3: Cross multiply
783,778.36x = 1,175,664.84 × 215,165.56 - Step 4: Simplify right side
783,778.36x = 252,962,583,670.91 - Step 5: Solve for x
x = 252,962,583,670.91/783,778.36 - Step 6: Final answer
x = 322,747.60
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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.