Finding the Fourth Proportional to 1,198,529.76, 1,654,058.16 and 689,391.84
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Solution
The fourth proportional to 1,198,529.76, 1,654,058.16 and 689,391.84 is: 951,410.83
Step by Step Solution
- Step 1: Write the proportion equation
1,198,529.76 : 1,654,058.16 = 689,391.84 : x - Step 2: Convert to fraction form
1,198,529.76/1,654,058.16 = 689,391.84/x - Step 3: Cross multiply
1,198,529.76x = 1,654,058.16 × 689,391.84 - Step 4: Simplify right side
1,198,529.76x = 1,140,294,198,389.41 - Step 5: Solve for x
x = 1,140,294,198,389.41/1,198,529.76 - Step 6: Final answer
x = 951,410.83
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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.