Finding the Fourth Proportional to 981,901.26, 1,355,031.86 and 552,177.63
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Solution
The fourth proportional to 981,901.26, 1,355,031.86 and 552,177.63 is: 762,009.69
Step by Step Solution
- Step 1: Write the proportion equation
981,901.26 : 1,355,031.86 = 552,177.63 : x - Step 2: Convert to fraction form
981,901.26/1,355,031.86 = 552,177.63/x - Step 3: Cross multiply
981,901.26x = 1,355,031.86 × 552,177.63 - Step 4: Simplify right side
981,901.26x = 748,218,278,268.40 - Step 5: Solve for x
x = 748,218,278,268.40/981,901.26 - Step 6: Final answer
x = 762,009.69
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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.