Finding the Fourth Proportional to 999,289.12, 1,379,469.30 and 637,199.68
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Solution
The fourth proportional to 999,289.12, 1,379,469.30 and 637,199.68 is: 879,622.70
Step by Step Solution
- Step 1: Write the proportion equation
999,289.12 : 1,379,469.30 = 637,199.68 : x - Step 2: Convert to fraction form
999,289.12/1,379,469.30 = 637,199.68/x - Step 3: Cross multiply
999,289.12x = 1,379,469.30 × 637,199.68 - Step 4: Simplify right side
999,289.12x = 878,997,396,529.82 - Step 5: Solve for x
x = 878,997,396,529.82/999,289.12 - Step 6: Final answer
x = 879,622.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.