Finding the Fourth Proportional to 1,486,731.60, 2,230,182.18 and 421,689.96
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Solution
The fourth proportional to 1,486,731.60, 2,230,182.18 and 421,689.96 is: 632,558.99
Step by Step Solution
- Step 1: Write the proportion equation
1,486,731.60 : 2,230,182.18 = 421,689.96 : x - Step 2: Convert to fraction form
1,486,731.60/2,230,182.18 = 421,689.96/x - Step 3: Cross multiply
1,486,731.60x = 2,230,182.18 × 421,689.96 - Step 4: Simplify right side
1,486,731.60x = 940,445,434,276.91 - Step 5: Solve for x
x = 940,445,434,276.91/1,486,731.60 - Step 6: Final answer
x = 632,558.99
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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.