Finding the Fourth Proportional to 861,996.12, 1,189,586.07 and 535,489.08
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Solution
The fourth proportional to 861,996.12, 1,189,586.07 and 535,489.08 is: 738,994.45
Step by Step Solution
- Step 1: Write the proportion equation
861,996.12 : 1,189,586.07 = 535,489.08 : x - Step 2: Convert to fraction form
861,996.12/1,189,586.07 = 535,489.08/x - Step 3: Cross multiply
861,996.12x = 1,189,586.07 × 535,489.08 - Step 4: Simplify right side
861,996.12x = 637,010,350,205.12 - Step 5: Solve for x
x = 637,010,350,205.12/861,996.12 - Step 6: Final answer
x = 738,994.45
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1.5x scale
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.