Finding the Fourth Proportional to 524,534.09, 783,815.07 and 393,850.95
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Solution
The fourth proportional to 524,534.09, 783,815.07 and 393,850.95 is: 588,534.32
Step by Step Solution
- Step 1: Write the proportion equation
524,534.09 : 783,815.07 = 393,850.95 : x - Step 2: Convert to fraction form
524,534.09/783,815.07 = 393,850.95/x - Step 3: Cross multiply
524,534.09x = 783,815.07 × 393,850.95 - Step 4: Simplify right side
524,534.09x = 308,706,309,943.82 - Step 5: Solve for x
x = 308,706,309,943.82/524,534.09 - Step 6: Final answer
x = 588,534.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.