Finding the Fourth Proportional to 3,174,403.14, 4,379,994.81 and 1,885,678.02
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Solution
The fourth proportional to 3,174,403.14, 4,379,994.81 and 1,885,678.02 is: 2,601,830.83
Step by Step Solution
- Step 1: Write the proportion equation
3,174,403.14 : 4,379,994.81 = 1,885,678.02 : x - Step 2: Convert to fraction form
3,174,403.14/4,379,994.81 = 1,885,678.02/x - Step 3: Cross multiply
3,174,403.14x = 4,379,994.81 × 1,885,678.02 - Step 4: Simplify right side
3,174,403.14x = 8,259,259,940,931.08 - Step 5: Solve for x
x = 8,259,259,940,931.08/3,174,403.14 - Step 6: Final answer
x = 2,601,830.83
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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.