Finding the Fourth Proportional to 1,642,435.05, 2,265,259.19 and 997,837.05
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Solution
The fourth proportional to 1,642,435.05, 2,265,259.19 and 997,837.05 is: 1,376,224.61
Step by Step Solution
- Step 1: Write the proportion equation
1,642,435.05 : 2,265,259.19 = 997,837.05 : x - Step 2: Convert to fraction form
1,642,435.05/2,265,259.19 = 997,837.05/x - Step 3: Cross multiply
1,642,435.05x = 2,265,259.19 × 997,837.05 - Step 4: Simplify right side
1,642,435.05x = 2,260,359,542,645.80 - Step 5: Solve for x
x = 2,260,359,542,645.80/1,642,435.05 - Step 6: Final answer
x = 1,376,224.61
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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.