Finding the Fourth Proportional to 823,841.13, 1,234,982.53 and 621,122.70
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Solution
The fourth proportional to 823,841.13, 1,234,982.53 and 621,122.70 is: 931,096.61
Step by Step Solution
- Step 1: Write the proportion equation
823,841.13 : 1,234,982.53 = 621,122.70 : x - Step 2: Convert to fraction form
823,841.13/1,234,982.53 = 621,122.70/x - Step 3: Cross multiply
823,841.13x = 1,234,982.53 × 621,122.70 - Step 4: Simplify right side
823,841.13x = 767,075,683,486.43 - Step 5: Solve for x
x = 767,075,683,486.43/823,841.13 - Step 6: Final answer
x = 931,096.61
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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.