Finding the Fourth Proportional to 528,532.14, 729,366.47 and 310,765.41
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Solution
The fourth proportional to 528,532.14, 729,366.47 and 310,765.41 is: 428,851.63
Step by Step Solution
- Step 1: Write the proportion equation
528,532.14 : 729,366.47 = 310,765.41 : x - Step 2: Convert to fraction form
528,532.14/729,366.47 = 310,765.41/x - Step 3: Cross multiply
528,532.14x = 729,366.47 × 310,765.41 - Step 4: Simplify right side
528,532.14x = 226,661,871,449.40 - Step 5: Solve for x
x = 226,661,871,449.40/528,532.14 - Step 6: Final answer
x = 428,851.63
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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.