Finding the Fourth Proportional to 3,465,891.99, 4,782,562.84 and 1,916,907.53
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Solution
The fourth proportional to 3,465,891.99, 4,782,562.84 and 1,916,907.53 is: 2,645,128.79
Step by Step Solution
- Step 1: Write the proportion equation
3,465,891.99 : 4,782,562.84 = 1,916,907.53 : x - Step 2: Convert to fraction form
3,465,891.99/4,782,562.84 = 1,916,907.53/x - Step 3: Cross multiply
3,465,891.99x = 4,782,562.84 × 1,916,907.53 - Step 4: Simplify right side
3,465,891.99x = 9,167,730,688,394.90 - Step 5: Solve for x
x = 9,167,730,688,394.90/3,465,891.99 - Step 6: Final answer
x = 2,645,128.79
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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.