Finding the Fourth Proportional to 719,403.18, 1,076,441.49 and 576,812.40
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Solution
The fourth proportional to 719,403.18, 1,076,441.49 and 576,812.40 is: 863,083.20
Step by Step Solution
- Step 1: Write the proportion equation
719,403.18 : 1,076,441.49 = 576,812.40 : x - Step 2: Convert to fraction form
719,403.18/1,076,441.49 = 576,812.40/x - Step 3: Cross multiply
719,403.18x = 1,076,441.49 × 576,812.40 - Step 4: Simplify right side
719,403.18x = 620,904,799,306.48 - Step 5: Solve for x
x = 620,904,799,306.48/719,403.18 - Step 6: Final answer
x = 863,083.20
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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.