Finding the Fourth Proportional to 2,029,905.56, 2,801,269.68 and 1,214,143.63
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Solution
The fourth proportional to 2,029,905.56, 2,801,269.68 and 1,214,143.63 is: 1,675,518.21
Step by Step Solution
- Step 1: Write the proportion equation
2,029,905.56 : 2,801,269.68 = 1,214,143.63 : x - Step 2: Convert to fraction form
2,029,905.56/2,801,269.68 = 1,214,143.63/x - Step 3: Cross multiply
2,029,905.56x = 2,801,269.68 × 1,214,143.63 - Step 4: Simplify right side
2,029,905.56x = 3,401,143,726,327.93 - Step 5: Solve for x
x = 3,401,143,726,327.93/2,029,905.56 - Step 6: Final answer
x = 1,675,518.21
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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.