Finding the Fourth Proportional to 1,542,439.71, 2,128,418.24 and 922,122.29
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Solution
The fourth proportional to 1,542,439.71, 2,128,418.24 and 922,122.29 is: 1,272,439.95
Step by Step Solution
- Step 1: Write the proportion equation
1,542,439.71 : 2,128,418.24 = 922,122.29 : x - Step 2: Convert to fraction form
1,542,439.71/2,128,418.24 = 922,122.29/x - Step 3: Cross multiply
1,542,439.71x = 2,128,418.24 × 922,122.29 - Step 4: Simplify right side
1,542,439.71x = 1,962,661,909,172.92 - Step 5: Solve for x
x = 1,962,661,909,172.92/1,542,439.71 - Step 6: Final answer
x = 1,272,439.95
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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.