Finding the Fourth Proportional to 3,174,671.79, 4,381,082.58 and 1,868,212.68
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Solution
The fourth proportional to 3,174,671.79, 4,381,082.58 and 1,868,212.68 is: 2,578,154.40
Step by Step Solution
- Step 1: Write the proportion equation
3,174,671.79 : 4,381,082.58 = 1,868,212.68 : x - Step 2: Convert to fraction form
3,174,671.79/4,381,082.58 = 1,868,212.68/x - Step 3: Cross multiply
3,174,671.79x = 4,381,082.58 × 1,868,212.68 - Step 4: Simplify right side
3,174,671.79x = 8,184,794,028,083.11 - Step 5: Solve for x
x = 8,184,794,028,083.11/3,174,671.79 - Step 6: Final answer
x = 2,578,154.40
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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.