Finding the Fourth Proportional to 879,161.12, 1,318,396.60 and 310,420.88
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Solution
The fourth proportional to 879,161.12, 1,318,396.60 and 310,420.88 is: 465,509.48
Step by Step Solution
- Step 1: Write the proportion equation
879,161.12 : 1,318,396.60 = 310,420.88 : x - Step 2: Convert to fraction form
879,161.12/1,318,396.60 = 310,420.88/x - Step 3: Cross multiply
879,161.12x = 1,318,396.60 × 310,420.88 - Step 4: Simplify right side
879,161.12x = 409,257,832,761.01 - Step 5: Solve for x
x = 409,257,832,761.01/879,161.12 - Step 6: Final answer
x = 465,509.48
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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.