Finding the Fourth Proportional to 831,363.29, 1,147,281.68 and 449,390.07
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Solution
The fourth proportional to 831,363.29, 1,147,281.68 and 449,390.07 is: 620,158.48
Step by Step Solution
- Step 1: Write the proportion equation
831,363.29 : 1,147,281.68 = 449,390.07 : x - Step 2: Convert to fraction form
831,363.29/1,147,281.68 = 449,390.07/x - Step 3: Cross multiply
831,363.29x = 1,147,281.68 × 449,390.07 - Step 4: Simplify right side
831,363.29x = 515,576,994,484.92 - Step 5: Solve for x
x = 515,576,994,484.92/831,363.29 - Step 6: Final answer
x = 620,158.48
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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.