Finding the Fourth Proportional to 528,640.70, 729,526.36 and 286,923.62
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Solution
The fourth proportional to 528,640.70, 729,526.36 and 286,923.62 is: 395,955.79
Step by Step Solution
- Step 1: Write the proportion equation
528,640.70 : 729,526.36 = 286,923.62 : x - Step 2: Convert to fraction form
528,640.70/729,526.36 = 286,923.62/x - Step 3: Cross multiply
528,640.70x = 729,526.36 × 286,923.62 - Step 4: Simplify right side
528,640.70x = 209,318,344,096.62 - Step 5: Solve for x
x = 209,318,344,096.62/528,640.70 - Step 6: Final answer
x = 395,955.79
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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.