Finding the Fourth Proportional to 989,706.80, 1,365,811.26 and 536,997.80
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Solution
The fourth proportional to 989,706.80, 1,365,811.26 and 536,997.80 is: 741,065.58
Step by Step Solution
- Step 1: Write the proportion equation
989,706.80 : 1,365,811.26 = 536,997.80 : x - Step 2: Convert to fraction form
989,706.80/1,365,811.26 = 536,997.80/x - Step 3: Cross multiply
989,706.80x = 1,365,811.26 × 536,997.80 - Step 4: Simplify right side
989,706.80x = 733,437,641,835.23 - Step 5: Solve for x
x = 733,437,641,835.23/989,706.80 - Step 6: Final answer
x = 741,065.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.