Finding the Fourth Proportional to 643,821.88, 965,722.98 and 217,657.06
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Solution
The fourth proportional to 643,821.88, 965,722.98 and 217,657.06 is: 326,482.26
Step by Step Solution
- Step 1: Write the proportion equation
643,821.88 : 965,722.98 = 217,657.06 : x - Step 2: Convert to fraction form
643,821.88/965,722.98 = 217,657.06/x - Step 3: Cross multiply
643,821.88x = 965,722.98 × 217,657.06 - Step 4: Simplify right side
643,821.88x = 210,196,424,601.24 - Step 5: Solve for x
x = 210,196,424,601.24/643,821.88 - Step 6: Final answer
x = 326,482.26
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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.