Finding the Fourth Proportional to 857,205.61, 1,285,808.34 and 288,538.99
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Solution
The fourth proportional to 857,205.61, 1,285,808.34 and 288,538.99 is: 432,808.46
Step by Step Solution
- Step 1: Write the proportion equation
857,205.61 : 1,285,808.34 = 288,538.99 : x - Step 2: Convert to fraction form
857,205.61/1,285,808.34 = 288,538.99/x - Step 3: Cross multiply
857,205.61x = 1,285,808.34 × 288,538.99 - Step 4: Simplify right side
857,205.61x = 371,005,839,757.18 - Step 5: Solve for x
x = 371,005,839,757.18/857,205.61 - Step 6: Final answer
x = 432,808.46
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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.