Finding the Fourth Proportional to 3,348,431.87, 4,620,993.91 and 1,898,155.49
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Solution
The fourth proportional to 3,348,431.87, 4,620,993.91 and 1,898,155.49 is: 2,619,544.10
Step by Step Solution
- Step 1: Write the proportion equation
3,348,431.87 : 4,620,993.91 = 1,898,155.49 : x - Step 2: Convert to fraction form
3,348,431.87/4,620,993.91 = 1,898,155.49/x - Step 3: Cross multiply
3,348,431.87x = 4,620,993.91 × 1,898,155.49 - Step 4: Simplify right side
3,348,431.87x = 8,771,364,931,672.71 - Step 5: Solve for x
x = 8,771,364,931,672.71/3,348,431.87 - Step 6: Final answer
x = 2,619,544.10
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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.