Finding the Fourth Proportional to 910,713.26, 1,256,688.86 and 528,665.42
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Solution
The fourth proportional to 910,713.26, 1,256,688.86 and 528,665.42 is: 729,502.88
Step by Step Solution
- Step 1: Write the proportion equation
910,713.26 : 1,256,688.86 = 528,665.42 : x - Step 2: Convert to fraction form
910,713.26/1,256,688.86 = 528,665.42/x - Step 3: Cross multiply
910,713.26x = 1,256,688.86 × 528,665.42 - Step 4: Simplify right side
910,713.26x = 664,367,943,981.22 - Step 5: Solve for x
x = 664,367,943,981.22/910,713.26 - Step 6: Final answer
x = 729,502.88
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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.