Finding the Fourth Proportional to 1,198,049, 1,653,119.68 and 688,656.20
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Solution
The fourth proportional to 1,198,049, 1,653,119.68 and 688,656.20 is: 950,237.53
Step by Step Solution
- Step 1: Write the proportion equation
1,198,049 : 1,653,119.68 = 688,656.20 : x - Step 2: Convert to fraction form
1,198,049/1,653,119.68 = 688,656.20/x - Step 3: Cross multiply
1,198,049x = 1,653,119.68 × 688,656.20 - Step 4: Simplify right side
1,198,049x = 1,138,431,116,974.02 - Step 5: Solve for x
x = 1,138,431,116,974.02/1,198,049 - Step 6: Final answer
x = 950,237.53
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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.