Finding the Fourth Proportional to 821,859.79, 1,232,790.14 and 539,337.67
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Solution
The fourth proportional to 821,859.79, 1,232,790.14 and 539,337.67 is: 809,006.79
Step by Step Solution
- Step 1: Write the proportion equation
821,859.79 : 1,232,790.14 = 539,337.67 : x - Step 2: Convert to fraction form
821,859.79/1,232,790.14 = 539,337.67/x - Step 3: Cross multiply
821,859.79x = 1,232,790.14 × 539,337.67 - Step 4: Simplify right side
821,859.79x = 664,890,152,845.94 - Step 5: Solve for x
x = 664,890,152,845.94/821,859.79 - Step 6: Final answer
x = 809,006.79
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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.