Finding the Fourth Proportional to 2,318,821.47, 3,200,006.79 and 1,400,922.99
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Solution
The fourth proportional to 2,318,821.47, 3,200,006.79 and 1,400,922.99 is: 1,933,293.76
Step by Step Solution
- Step 1: Write the proportion equation
2,318,821.47 : 3,200,006.79 = 1,400,922.99 : x - Step 2: Convert to fraction form
2,318,821.47/3,200,006.79 = 1,400,922.99/x - Step 3: Cross multiply
2,318,821.47x = 3,200,006.79 × 1,400,922.99 - Step 4: Simplify right side
2,318,821.47x = 4,482,963,080,267.10 - Step 5: Solve for x
x = 4,482,963,080,267.10/2,318,821.47 - Step 6: Final answer
x = 1,933,293.76
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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.