Finding the Fourth Proportional to 3,642,638.12, 5,464,221.24 and 1,398,776.12
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Solution
The fourth proportional to 3,642,638.12, 5,464,221.24 and 1,398,776.12 is: 2,098,265.58
Step by Step Solution
- Step 1: Write the proportion equation
3,642,638.12 : 5,464,221.24 = 1,398,776.12 : x - Step 2: Convert to fraction form
3,642,638.12/5,464,221.24 = 1,398,776.12/x - Step 3: Cross multiply
3,642,638.12x = 5,464,221.24 × 1,398,776.12 - Step 4: Simplify right side
3,642,638.12x = 7,643,222,184,908.79 - Step 5: Solve for x
x = 7,643,222,184,908.79/3,642,638.12 - Step 6: Final answer
x = 2,098,265.58
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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.