Finding the Fourth Proportional to 475,406.39, 655,769.36 and 388,318.02
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Solution
The fourth proportional to 475,406.39, 655,769.36 and 388,318.02 is: 535,640.80
Step by Step Solution
- Step 1: Write the proportion equation
475,406.39 : 655,769.36 = 388,318.02 : x - Step 2: Convert to fraction form
475,406.39/655,769.36 = 388,318.02/x - Step 3: Cross multiply
475,406.39x = 655,769.36 × 388,318.02 - Step 4: Simplify right side
475,406.39x = 254,647,057,510.28 - Step 5: Solve for x
x = 254,647,057,510.28/475,406.39 - Step 6: Final answer
x = 535,640.80
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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.