Finding the Fourth Proportional to 1,198,507.05, 1,653,928.80 and 654,642.75
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Solution
The fourth proportional to 1,198,507.05, 1,653,928.80 and 654,642.75 is: 903,401.03
Step by Step Solution
- Step 1: Write the proportion equation
1,198,507.05 : 1,653,928.80 = 654,642.75 : x - Step 2: Convert to fraction form
1,198,507.05/1,653,928.80 = 654,642.75/x - Step 3: Cross multiply
1,198,507.05x = 1,653,928.80 × 654,642.75 - Step 4: Simplify right side
1,198,507.05x = 1,082,732,497,936.20 - Step 5: Solve for x
x = 1,082,732,497,936.20/1,198,507.05 - Step 6: Final answer
x = 903,401.03
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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.