Finding the Fourth Proportional to 412,047.88, 620,879.44 and 338,808.63
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Solution
The fourth proportional to 412,047.88, 620,879.44 and 338,808.63 is: 510,521.53
Step by Step Solution
- Step 1: Write the proportion equation
412,047.88 : 620,879.44 = 338,808.63 : x - Step 2: Convert to fraction form
412,047.88/620,879.44 = 338,808.63/x - Step 3: Cross multiply
412,047.88x = 620,879.44 × 338,808.63 - Step 4: Simplify right side
412,047.88x = 210,359,312,461.57 - Step 5: Solve for x
x = 210,359,312,461.57/412,047.88 - Step 6: Final answer
x = 510,521.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.