Finding the Fourth Proportional to 768,130.92, 1,059,850.62 and 445,653.96
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Solution
The fourth proportional to 768,130.92, 1,059,850.62 and 445,653.96 is: 614,903.81
Step by Step Solution
- Step 1: Write the proportion equation
768,130.92 : 1,059,850.62 = 445,653.96 : x - Step 2: Convert to fraction form
768,130.92/1,059,850.62 = 445,653.96/x - Step 3: Cross multiply
768,130.92x = 1,059,850.62 × 445,653.96 - Step 4: Simplify right side
768,130.92x = 472,326,625,811.46 - Step 5: Solve for x
x = 472,326,625,811.46/768,130.92 - Step 6: Final answer
x = 614,903.81
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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.