Finding the Fourth Proportional to 387,829.73, 581,744.62 and 121,611.69
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Solution
The fourth proportional to 387,829.73, 581,744.62 and 121,611.69 is: 182,417.54
Step by Step Solution
- Step 1: Write the proportion equation
387,829.73 : 581,744.62 = 121,611.69 : x - Step 2: Convert to fraction form
387,829.73/581,744.62 = 121,611.69/x - Step 3: Cross multiply
387,829.73x = 581,744.62 × 121,611.69 - Step 4: Simplify right side
387,829.73x = 70,746,944,324.19 - Step 5: Solve for x
x = 70,746,944,324.19/387,829.73 - Step 6: Final answer
x = 182,417.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.