Finding the Fourth Proportional to 2,357,657.80, 3,253,523.68 and 1,311,143.20
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Solution
The fourth proportional to 2,357,657.80, 3,253,523.68 and 1,311,143.20 is: 1,809,353.10
Step by Step Solution
- Step 1: Write the proportion equation
2,357,657.80 : 3,253,523.68 = 1,311,143.20 : x - Step 2: Convert to fraction form
2,357,657.80/3,253,523.68 = 1,311,143.20/x - Step 3: Cross multiply
2,357,657.80x = 3,253,523.68 × 1,311,143.20 - Step 4: Simplify right side
2,357,657.80x = 4,265,835,449,070.98 - Step 5: Solve for x
x = 4,265,835,449,070.98/2,357,657.80 - Step 6: Final answer
x = 1,809,353.10
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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.