Finding the Fourth Proportional to 2,105,432.13, 2,905,497.60 and 1,138,562.37
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Solution
The fourth proportional to 2,105,432.13, 2,905,497.60 and 1,138,562.37 is: 1,571,216.75
Step by Step Solution
- Step 1: Write the proportion equation
2,105,432.13 : 2,905,497.60 = 1,138,562.37 : x - Step 2: Convert to fraction form
2,105,432.13/2,905,497.60 = 1,138,562.37/x - Step 3: Cross multiply
2,105,432.13x = 2,905,497.60 × 1,138,562.37 - Step 4: Simplify right side
2,105,432.13x = 3,308,090,233,485.31 - Step 5: Solve for x
x = 3,308,090,233,485.31/2,105,432.13 - Step 6: Final answer
x = 1,571,216.75
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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.