Finding the Fourth Proportional to 4,272,978.09, 6,407,411.36 and 1,431,102.81
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Solution
The fourth proportional to 4,272,978.09, 6,407,411.36 and 1,431,102.81 is: 2,145,965.69
Step by Step Solution
- Step 1: Write the proportion equation
4,272,978.09 : 6,407,411.36 = 1,431,102.81 : x - Step 2: Convert to fraction form
4,272,978.09/6,407,411.36 = 1,431,102.81/x - Step 3: Cross multiply
4,272,978.09x = 6,407,411.36 × 1,431,102.81 - Step 4: Simplify right side
4,272,978.09x = 9,169,664,394,966.41 - Step 5: Solve for x
x = 9,169,664,394,966.41/4,272,978.09 - Step 6: Final answer
x = 2,145,965.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.