Finding the Fourth Proportional to 729,005.99, 1,006,028.90 and 406,716.15
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Solution
The fourth proportional to 729,005.99, 1,006,028.90 and 406,716.15 is: 561,268.64
Step by Step Solution
- Step 1: Write the proportion equation
729,005.99 : 1,006,028.90 = 406,716.15 : x - Step 2: Convert to fraction form
729,005.99/1,006,028.90 = 406,716.15/x - Step 3: Cross multiply
729,005.99x = 1,006,028.90 × 406,716.15 - Step 4: Simplify right side
729,005.99x = 409,168,198,963.15 - Step 5: Solve for x
x = 409,168,198,963.15/729,005.99 - Step 6: Final answer
x = 561,268.64
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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.