Finding the Fourth Proportional to 750,727.68, 1,036,021.04 and 428,431.36
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Solution
The fourth proportional to 750,727.68, 1,036,021.04 and 428,431.36 is: 591,244.89
Step by Step Solution
- Step 1: Write the proportion equation
750,727.68 : 1,036,021.04 = 428,431.36 : x - Step 2: Convert to fraction form
750,727.68/1,036,021.04 = 428,431.36/x - Step 3: Cross multiply
750,727.68x = 1,036,021.04 × 428,431.36 - Step 4: Simplify right side
750,727.68x = 443,863,903,155.81 - Step 5: Solve for x
x = 443,863,903,155.81/750,727.68 - Step 6: Final answer
x = 591,244.89
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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.