Finding the Fourth Proportional to 1,380,602.99, 1,905,213.95 and 760,396.25
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Solution
The fourth proportional to 1,380,602.99, 1,905,213.95 and 760,396.25 is: 1,049,336.81
Step by Step Solution
- Step 1: Write the proportion equation
1,380,602.99 : 1,905,213.95 = 760,396.25 : x - Step 2: Convert to fraction form
1,380,602.99/1,905,213.95 = 760,396.25/x - Step 3: Cross multiply
1,380,602.99x = 1,905,213.95 × 760,396.25 - Step 4: Simplify right side
1,380,602.99x = 1,448,717,529,699.64 - Step 5: Solve for x
x = 1,448,717,529,699.64/1,380,602.99 - Step 6: Final answer
x = 1,049,336.81
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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.