Finding the Fourth Proportional to 2,662,869.60, 3,986,431.20 and 2,507,155.20
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Solution
The fourth proportional to 2,662,869.60, 3,986,431.20 and 2,507,155.20 is: 3,753,319.99
Step by Step Solution
- Step 1: Write the proportion equation
2,662,869.60 : 3,986,431.20 = 2,507,155.20 : x - Step 2: Convert to fraction form
2,662,869.60/3,986,431.20 = 2,507,155.20/x - Step 3: Cross multiply
2,662,869.60x = 3,986,431.20 × 2,507,155.20 - Step 4: Simplify right side
2,662,869.60x = 9,994,601,712,522.24 - Step 5: Solve for x
x = 9,994,601,712,522.24/2,662,869.60 - Step 6: Final answer
x = 3,753,319.99
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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.