Finding the Fourth Proportional to 3,998,085.11, 5,997,122.96 and 1,302,405.92
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Solution
The fourth proportional to 3,998,085.11, 5,997,122.96 and 1,302,405.92 is: 1,953,607.34
Step by Step Solution
- Step 1: Write the proportion equation
3,998,085.11 : 5,997,122.96 = 1,302,405.92 : x - Step 2: Convert to fraction form
3,998,085.11/5,997,122.96 = 1,302,405.92/x - Step 3: Cross multiply
3,998,085.11x = 5,997,122.96 × 1,302,405.92 - Step 4: Simplify right side
3,998,085.11x = 7,810,688,432,063.49 - Step 5: Solve for x
x = 7,810,688,432,063.49/3,998,085.11 - Step 6: Final answer
x = 1,953,607.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.