Finding the Fourth Proportional to 528,087.07, 729,159.29 and 324,417.07
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Solution
The fourth proportional to 528,087.07, 729,159.29 and 324,417.07 is: 447,940.75
Step by Step Solution
- Step 1: Write the proportion equation
528,087.07 : 729,159.29 = 324,417.07 : x - Step 2: Convert to fraction form
528,087.07/729,159.29 = 324,417.07/x - Step 3: Cross multiply
528,087.07x = 729,159.29 × 324,417.07 - Step 4: Simplify right side
528,087.07x = 236,551,720,425.08 - Step 5: Solve for x
x = 236,551,720,425.08/528,087.07 - Step 6: Final answer
x = 447,940.75
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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.