Finding the Fourth Proportional to 1,982,025.20, 2,973,037.80 and 486,117.20
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Solution
The fourth proportional to 1,982,025.20, 2,973,037.80 and 486,117.20 is: 729,175.80
Step by Step Solution
- Step 1: Write the proportion equation
1,982,025.20 : 2,973,037.80 = 486,117.20 : x - Step 2: Convert to fraction form
1,982,025.20/2,973,037.80 = 486,117.20/x - Step 3: Cross multiply
1,982,025.20x = 2,973,037.80 × 486,117.20 - Step 4: Simplify right side
1,982,025.20x = 1,445,244,810,830.16 - Step 5: Solve for x
x = 1,445,244,810,830.16/1,982,025.20 - Step 6: Final answer
x = 729,175.80
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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.