Finding the Fourth Proportional to 458,329.15, 632,610.49 and 313,193.68
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Solution
The fourth proportional to 458,329.15, 632,610.49 and 313,193.68 is: 432,286.72
Step by Step Solution
- Step 1: Write the proportion equation
458,329.15 : 632,610.49 = 313,193.68 : x - Step 2: Convert to fraction form
458,329.15/632,610.49 = 313,193.68/x - Step 3: Cross multiply
458,329.15x = 632,610.49 × 313,193.68 - Step 4: Simplify right side
458,329.15x = 198,129,606,033.96 - Step 5: Solve for x
x = 198,129,606,033.96/458,329.15 - Step 6: Final answer
x = 432,286.72
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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.