Finding the Fourth Proportional to 1,706,409.11, 2,559,620.67 and 427,013.09
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Solution
The fourth proportional to 1,706,409.11, 2,559,620.67 and 427,013.09 is: 640,521.39
Step by Step Solution
- Step 1: Write the proportion equation
1,706,409.11 : 2,559,620.67 = 427,013.09 : x - Step 2: Convert to fraction form
1,706,409.11/2,559,620.67 = 427,013.09/x - Step 3: Cross multiply
1,706,409.11x = 2,559,620.67 × 427,013.09 - Step 4: Simplify right side
1,706,409.11x = 1,092,991,536,856.09 - Step 5: Solve for x
x = 1,092,991,536,856.09/1,706,409.11 - Step 6: Final answer
x = 640,521.39
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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.