Finding the Fourth Proportional to 636,015.16, 877,701.57 and 349,529.09
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Solution
The fourth proportional to 636,015.16, 877,701.57 and 349,529.09 is: 482,350.50
Step by Step Solution
- Step 1: Write the proportion equation
636,015.16 : 877,701.57 = 349,529.09 : x - Step 2: Convert to fraction form
636,015.16/877,701.57 = 349,529.09/x - Step 3: Cross multiply
636,015.16x = 877,701.57 × 349,529.09 - Step 4: Simplify right side
636,015.16x = 306,782,231,053.67 - Step 5: Solve for x
x = 306,782,231,053.67/636,015.16 - Step 6: Final answer
x = 482,350.50
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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.