Finding the Fourth Proportional to 1,542,048.79, 2,128,993.32 and 990,987.97
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Solution
The fourth proportional to 1,542,048.79, 2,128,993.32 and 990,987.97 is: 1,368,184.19
Step by Step Solution
- Step 1: Write the proportion equation
1,542,048.79 : 2,128,993.32 = 990,987.97 : x - Step 2: Convert to fraction form
1,542,048.79/2,128,993.32 = 990,987.97/x - Step 3: Cross multiply
1,542,048.79x = 2,128,993.32 × 990,987.97 - Step 4: Simplify right side
1,542,048.79x = 2,109,806,768,330.36 - Step 5: Solve for x
x = 2,109,806,768,330.36/1,542,048.79 - Step 6: Final answer
x = 1,368,184.19
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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.