Finding the Fourth Proportional to 1,267,895.20, 1,749,145.56 and 838,772.99
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Solution
The fourth proportional to 1,267,895.20, 1,749,145.56 and 838,772.99 is: 1,157,143.01
Step by Step Solution
- Step 1: Write the proportion equation
1,267,895.20 : 1,749,145.56 = 838,772.99 : x - Step 2: Convert to fraction form
1,267,895.20/1,749,145.56 = 838,772.99/x - Step 3: Cross multiply
1,267,895.20x = 1,749,145.56 × 838,772.99 - Step 4: Simplify right side
1,267,895.20x = 1,467,136,062,104.34 - Step 5: Solve for x
x = 1,467,136,062,104.34/1,267,895.20 - Step 6: Final answer
x = 1,157,143.01
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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.