Finding the Fourth Proportional to 1,380,602.74, 1,905,213.60 and 760,395.99
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Solution
The fourth proportional to 1,380,602.74, 1,905,213.60 and 760,395.99 is: 1,049,336.45
Step by Step Solution
- Step 1: Write the proportion equation
1,380,602.74 : 1,905,213.60 = 760,395.99 : x - Step 2: Convert to fraction form
1,380,602.74/1,905,213.60 = 760,395.99/x - Step 3: Cross multiply
1,380,602.74x = 1,905,213.60 × 760,395.99 - Step 4: Simplify right side
1,380,602.74x = 1,448,716,781,533.46 - Step 5: Solve for x
x = 1,448,716,781,533.46/1,380,602.74 - Step 6: Final answer
x = 1,049,336.45
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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.