Finding the Fourth Proportional to 2,802,402.60, 4,203,020.70 and 780,124.20
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Solution
The fourth proportional to 2,802,402.60, 4,203,020.70 and 780,124.20 is: 1,170,023.95
Step by Step Solution
- Step 1: Write the proportion equation
2,802,402.60 : 4,203,020.70 = 780,124.20 : x - Step 2: Convert to fraction form
2,802,402.60/4,203,020.70 = 780,124.20/x - Step 3: Cross multiply
2,802,402.60x = 4,203,020.70 × 780,124.20 - Step 4: Simplify right side
2,802,402.60x = 3,278,878,161,170.94 - Step 5: Solve for x
x = 3,278,878,161,170.94/2,802,402.60 - Step 6: Final answer
x = 1,170,023.95
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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.