Finding the Fourth Proportional to 836,218.68, 1,248,008.79 and 755,506.23
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Solution
The fourth proportional to 836,218.68, 1,248,008.79 and 755,506.23 is: 1,127,550.05
Step by Step Solution
- Step 1: Write the proportion equation
836,218.68 : 1,248,008.79 = 755,506.23 : x - Step 2: Convert to fraction form
836,218.68/1,248,008.79 = 755,506.23/x - Step 3: Cross multiply
836,218.68x = 1,248,008.79 × 755,506.23 - Step 4: Simplify right side
836,218.68x = 942,878,415,939.76 - Step 5: Solve for x
x = 942,878,415,939.76/836,218.68 - Step 6: Final answer
x = 1,127,550.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.