Finding the Fourth Proportional to 1,665,825.28, 2,498,847.36 and 668,423.68
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Solution
The fourth proportional to 1,665,825.28, 2,498,847.36 and 668,423.68 is: 1,002,679.43
Step by Step Solution
- Step 1: Write the proportion equation
1,665,825.28 : 2,498,847.36 = 668,423.68 : x - Step 2: Convert to fraction form
1,665,825.28/2,498,847.36 = 668,423.68/x - Step 3: Cross multiply
1,665,825.28x = 2,498,847.36 × 668,423.68 - Step 4: Simplify right side
1,665,825.28x = 1,670,288,748,129.49 - Step 5: Solve for x
x = 1,670,288,748,129.49/1,665,825.28 - Step 6: Final answer
x = 1,002,679.43
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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.