Finding the Fourth Proportional to 879,010.80, 1,318,516.20 and 524,425.20
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Solution
The fourth proportional to 879,010.80, 1,318,516.20 and 524,425.20 is: 786,637.80
Step by Step Solution
- Step 1: Write the proportion equation
879,010.80 : 1,318,516.20 = 524,425.20 : x - Step 2: Convert to fraction form
879,010.80/1,318,516.20 = 524,425.20/x - Step 3: Cross multiply
879,010.80x = 1,318,516.20 × 524,425.20 - Step 4: Simplify right side
879,010.80x = 691,463,121,888.24 - Step 5: Solve for x
x = 691,463,121,888.24/879,010.80 - Step 6: Final answer
x = 786,637.80
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1.5x scale
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.