Finding the Fourth Proportional to 1,220,765.49, 1,684,660.01 and 676,939.59
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Solution
The fourth proportional to 1,220,765.49, 1,684,660.01 and 676,939.59 is: 934,178.65
Step by Step Solution
- Step 1: Write the proportion equation
1,220,765.49 : 1,684,660.01 = 676,939.59 : x - Step 2: Convert to fraction form
1,220,765.49/1,684,660.01 = 676,939.59/x - Step 3: Cross multiply
1,220,765.49x = 1,684,660.01 × 676,939.59 - Step 4: Simplify right side
1,220,765.49x = 1,140,413,053,074.10 - Step 5: Solve for x
x = 1,140,413,053,074.10/1,220,765.49 - Step 6: Final answer
x = 934,178.65
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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.