Finding the Fourth Proportional to 528,387.73, 729,243.79 and 295,903.19
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Solution
The fourth proportional to 528,387.73, 729,243.79 and 295,903.19 is: 408,384.89
Step by Step Solution
- Step 1: Write the proportion equation
528,387.73 : 729,243.79 = 295,903.19 : x - Step 2: Convert to fraction form
528,387.73/729,243.79 = 295,903.19/x - Step 3: Cross multiply
528,387.73x = 729,243.79 × 295,903.19 - Step 4: Simplify right side
528,387.73x = 215,785,564,832.04 - Step 5: Solve for x
x = 215,785,564,832.04/528,387.73 - Step 6: Final answer
x = 408,384.89
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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.