Finding the Fourth Proportional to 2,170,217.15, 2,994,624.36 and 1,189,898.22
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Solution
The fourth proportional to 2,170,217.15, 2,994,624.36 and 1,189,898.22 is: 1,641,908.60
Step by Step Solution
- Step 1: Write the proportion equation
2,170,217.15 : 2,994,624.36 = 1,189,898.22 : x - Step 2: Convert to fraction form
2,170,217.15/2,994,624.36 = 1,189,898.22/x - Step 3: Cross multiply
2,170,217.15x = 2,994,624.36 × 1,189,898.22 - Step 4: Simplify right side
2,170,217.15x = 3,563,298,195,532.64 - Step 5: Solve for x
x = 3,563,298,195,532.64/2,170,217.15 - Step 6: Final answer
x = 1,641,908.60
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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.