Finding the Fourth Proportional to 1,198,646.94, 1,654,183.04 and 689,349.72
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Solution
The fourth proportional to 1,198,646.94, 1,654,183.04 and 689,349.72 is: 951,331.52
Step by Step Solution
- Step 1: Write the proportion equation
1,198,646.94 : 1,654,183.04 = 689,349.72 : x - Step 2: Convert to fraction form
1,198,646.94/1,654,183.04 = 689,349.72/x - Step 3: Cross multiply
1,198,646.94x = 1,654,183.04 × 689,349.72 - Step 4: Simplify right side
1,198,646.94x = 1,140,310,615,452.75 - Step 5: Solve for x
x = 1,140,310,615,452.75/1,198,646.94 - Step 6: Final answer
x = 951,331.52
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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.