Finding the Fourth Proportional to 1,603,920.99, 2,405,860.71 and 389,507.57
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Solution
The fourth proportional to 1,603,920.99, 2,405,860.71 and 389,507.57 is: 584,256.30
Step by Step Solution
- Step 1: Write the proportion equation
1,603,920.99 : 2,405,860.71 = 389,507.57 : x - Step 2: Convert to fraction form
1,603,920.99/2,405,860.71 = 389,507.57/x - Step 3: Cross multiply
1,603,920.99x = 2,405,860.71 × 389,507.57 - Step 4: Simplify right side
1,603,920.99x = 937,100,946,881.27 - Step 5: Solve for x
x = 937,100,946,881.27/1,603,920.99 - Step 6: Final answer
x = 584,256.30
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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.