Finding the Fourth Proportional to 708,104.94, 977,172.51 and 385,817.68
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Solution
The fourth proportional to 708,104.94, 977,172.51 and 385,817.68 is: 532,421.70
Step by Step Solution
- Step 1: Write the proportion equation
708,104.94 : 977,172.51 = 385,817.68 : x - Step 2: Convert to fraction form
708,104.94/977,172.51 = 385,817.68/x - Step 3: Cross multiply
708,104.94x = 977,172.51 × 385,817.68 - Step 4: Simplify right side
708,104.94x = 377,010,431,266.03 - Step 5: Solve for x
x = 377,010,431,266.03/708,104.94 - Step 6: Final answer
x = 532,421.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.