Finding the Fourth Proportional to 628,691.41, 943,045.76 and 179,412.09
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Solution
The fourth proportional to 628,691.41, 943,045.76 and 179,412.09 is: 269,120.60
Step by Step Solution
- Step 1: Write the proportion equation
628,691.41 : 943,045.76 = 179,412.09 : x - Step 2: Convert to fraction form
628,691.41/943,045.76 = 179,412.09/x - Step 3: Cross multiply
628,691.41x = 943,045.76 × 179,412.09 - Step 4: Simplify right side
628,691.41x = 169,193,810,767.24 - Step 5: Solve for x
x = 169,193,810,767.24/628,691.41 - Step 6: Final answer
x = 269,120.60
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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.