Finding the Fourth Proportional to 1,670,811.80, 2,305,722.90 and 906,865.70
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Solution
The fourth proportional to 1,670,811.80, 2,305,722.90 and 906,865.70 is: 1,251,476.09
Step by Step Solution
- Step 1: Write the proportion equation
1,670,811.80 : 2,305,722.90 = 906,865.70 : x - Step 2: Convert to fraction form
1,670,811.80/2,305,722.90 = 906,865.70/x - Step 3: Cross multiply
1,670,811.80x = 2,305,722.90 × 906,865.70 - Step 4: Simplify right side
1,670,811.80x = 2,090,981,011,714.53 - Step 5: Solve for x
x = 2,090,981,011,714.53/1,670,811.80 - Step 6: Final answer
x = 1,251,476.09
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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.