Finding the Fourth Proportional to 2,990,775.60, 4,486,163.40 and 2,648,291.40
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Solution
The fourth proportional to 2,990,775.60, 4,486,163.40 and 2,648,291.40 is: 3,972,437.10
Step by Step Solution
- Step 1: Write the proportion equation
2,990,775.60 : 4,486,163.40 = 2,648,291.40 : x - Step 2: Convert to fraction form
2,990,775.60/4,486,163.40 = 2,648,291.40/x - Step 3: Cross multiply
2,990,775.60x = 4,486,163.40 × 2,648,291.40 - Step 4: Simplify right side
2,990,775.60x = 11,880,667,951,214.76 - Step 5: Solve for x
x = 11,880,667,951,214.76/2,990,775.60 - Step 6: Final answer
x = 3,972,437.10
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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.