Finding the Fourth Proportional to 419,555.70, 579,273.12 and 322,588.98
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Solution
The fourth proportional to 419,555.70, 579,273.12 and 322,588.98 is: 445,392.89
Step by Step Solution
- Step 1: Write the proportion equation
419,555.70 : 579,273.12 = 322,588.98 : x - Step 2: Convert to fraction form
419,555.70/579,273.12 = 322,588.98/x - Step 3: Cross multiply
419,555.70x = 579,273.12 × 322,588.98 - Step 4: Simplify right side
419,555.70x = 186,867,124,922.22 - Step 5: Solve for x
x = 186,867,124,922.22/419,555.70 - Step 6: Final answer
x = 445,392.89
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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.