Finding the Fourth Proportional to 857,810.46, 1,285,817.90 and 288,994.99
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Solution
The fourth proportional to 857,810.46, 1,285,817.90 and 288,994.99 is: 433,190.03
Step by Step Solution
- Step 1: Write the proportion equation
857,810.46 : 1,285,817.90 = 288,994.99 : x - Step 2: Convert to fraction form
857,810.46/1,285,817.90 = 288,994.99/x - Step 3: Cross multiply
857,810.46x = 1,285,817.90 × 288,994.99 - Step 4: Simplify right side
857,810.46x = 371,594,935,258.17 - Step 5: Solve for x
x = 371,594,935,258.17/857,810.46 - Step 6: Final answer
x = 433,190.03
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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.