Finding the Fourth Proportional to 1,057,845.36, 1,586,220.84 and 426,587.76
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Solution
The fourth proportional to 1,057,845.36, 1,586,220.84 and 426,587.76 is: 639,660.98
Step by Step Solution
- Step 1: Write the proportion equation
1,057,845.36 : 1,586,220.84 = 426,587.76 : x - Step 2: Convert to fraction form
1,057,845.36/1,586,220.84 = 426,587.76/x - Step 3: Cross multiply
1,057,845.36x = 1,586,220.84 × 426,587.76 - Step 4: Simplify right side
1,057,845.36x = 676,662,395,000.92 - Step 5: Solve for x
x = 676,662,395,000.92/1,057,845.36 - Step 6: Final answer
x = 639,660.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.