Finding the Fourth Proportional to 910,129.01, 1,256,227.88 and 528,278.81
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Solution
The fourth proportional to 910,129.01, 1,256,227.88 and 528,278.81 is: 729,169.78
Step by Step Solution
- Step 1: Write the proportion equation
910,129.01 : 1,256,227.88 = 528,278.81 : x - Step 2: Convert to fraction form
910,129.01/1,256,227.88 = 528,278.81/x - Step 3: Cross multiply
910,129.01x = 1,256,227.88 × 528,278.81 - Step 4: Simplify right side
910,129.01x = 663,638,569,535.22 - Step 5: Solve for x
x = 663,638,569,535.22/910,129.01 - Step 6: Final answer
x = 729,169.78
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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.