Finding the Fourth Proportional to 2,689,212.40, 3,711,113.84 and 1,465,518.28
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Solution
The fourth proportional to 2,689,212.40, 3,711,113.84 and 1,465,518.28 is: 2,022,415.62
Step by Step Solution
- Step 1: Write the proportion equation
2,689,212.40 : 3,711,113.84 = 1,465,518.28 : x - Step 2: Convert to fraction form
2,689,212.40/3,711,113.84 = 1,465,518.28/x - Step 3: Cross multiply
2,689,212.40x = 3,711,113.84 × 1,465,518.28 - Step 4: Simplify right side
2,689,212.40x = 5,438,705,171,681.00 - Step 5: Solve for x
x = 5,438,705,171,681.00/2,689,212.40 - Step 6: Final answer
x = 2,022,415.62
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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.