Finding the Fourth Proportional to 3,982,746.40, 5,974,119.60 and 1,323,354.40
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Solution
The fourth proportional to 3,982,746.40, 5,974,119.60 and 1,323,354.40 is: 1,985,031.60
Step by Step Solution
- Step 1: Write the proportion equation
3,982,746.40 : 5,974,119.60 = 1,323,354.40 : x - Step 2: Convert to fraction form
3,982,746.40/5,974,119.60 = 1,323,354.40/x - Step 3: Cross multiply
3,982,746.40x = 5,974,119.60 × 1,323,354.40 - Step 4: Simplify right side
3,982,746.40x = 7,905,877,458,786.24 - Step 5: Solve for x
x = 7,905,877,458,786.24/3,982,746.40 - Step 6: Final answer
x = 1,985,031.60
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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.