Finding the Fourth Proportional to 989,845.84, 1,365,990.78 and 537,136.84
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Solution
The fourth proportional to 989,845.84, 1,365,990.78 and 537,136.84 is: 741,250.75
Step by Step Solution
- Step 1: Write the proportion equation
989,845.84 : 1,365,990.78 = 537,136.84 : x - Step 2: Convert to fraction form
989,845.84/1,365,990.78 = 537,136.84/x - Step 3: Cross multiply
989,845.84x = 1,365,990.78 × 537,136.84 - Step 4: Simplify right side
989,845.84x = 733,723,971,038.34 - Step 5: Solve for x
x = 733,723,971,038.34/989,845.84 - Step 6: Final answer
x = 741,250.75
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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.