Finding the Fourth Proportional to 1,292,491.36, 1,783,580.53 and 740,811.60
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Solution
The fourth proportional to 1,292,491.36, 1,783,580.53 and 740,811.60 is: 1,022,287.02
Step by Step Solution
- Step 1: Write the proportion equation
1,292,491.36 : 1,783,580.53 = 740,811.60 : x - Step 2: Convert to fraction form
1,292,491.36/1,783,580.53 = 740,811.60/x - Step 3: Cross multiply
1,292,491.36x = 1,783,580.53 × 740,811.60 - Step 4: Simplify right side
1,292,491.36x = 1,321,297,146,158.15 - Step 5: Solve for x
x = 1,321,297,146,158.15/1,292,491.36 - Step 6: Final answer
x = 1,022,287.02
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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.