Finding the Fourth Proportional to 910,133.28, 1,256,233.74 and 528,283.08
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Solution
The fourth proportional to 910,133.28, 1,256,233.74 and 528,283.08 is: 729,175.65
Step by Step Solution
- Step 1: Write the proportion equation
910,133.28 : 1,256,233.74 = 528,283.08 : x - Step 2: Convert to fraction form
910,133.28/1,256,233.74 = 528,283.08/x - Step 3: Cross multiply
910,133.28x = 1,256,233.74 × 528,283.08 - Step 4: Simplify right side
910,133.28x = 663,647,029,367.12 - Step 5: Solve for x
x = 663,647,029,367.12/910,133.28 - Step 6: Final answer
x = 729,175.65
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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.