Finding the Fourth Proportional to 1,000,347.75, 1,380,479.97 and 547,638.75
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Solution
The fourth proportional to 1,000,347.75, 1,380,479.97 and 547,638.75 is: 755,741.52
Step by Step Solution
- Step 1: Write the proportion equation
1,000,347.75 : 1,380,479.97 = 547,638.75 : x - Step 2: Convert to fraction form
1,000,347.75/1,380,479.97 = 547,638.75/x - Step 3: Cross multiply
1,000,347.75x = 1,380,479.97 × 547,638.75 - Step 4: Simplify right side
1,000,347.75x = 756,004,325,170.84 - Step 5: Solve for x
x = 756,004,325,170.84/1,000,347.75 - Step 6: Final answer
x = 755,741.52
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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.