Finding the Fourth Proportional to 879,144.12, 1,318,371.12 and 310,403.88
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Solution
The fourth proportional to 879,144.12, 1,318,371.12 and 310,403.88 is: 465,483.99
Step by Step Solution
- Step 1: Write the proportion equation
879,144.12 : 1,318,371.12 = 310,403.88 : x - Step 2: Convert to fraction form
879,144.12/1,318,371.12 = 310,403.88/x - Step 3: Cross multiply
879,144.12x = 1,318,371.12 × 310,403.88 - Step 4: Simplify right side
879,144.12x = 409,227,510,927.95 - Step 5: Solve for x
x = 409,227,510,927.95/879,144.12 - Step 6: Final answer
x = 465,483.99
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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.