Finding the Fourth Proportional to 1,643,558.74, 2,268,067.53 and 918,412.42
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Solution
The fourth proportional to 1,643,558.74, 2,268,067.53 and 918,412.42 is: 1,267,384.81
Step by Step Solution
- Step 1: Write the proportion equation
1,643,558.74 : 2,268,067.53 = 918,412.42 : x - Step 2: Convert to fraction form
1,643,558.74/2,268,067.53 = 918,412.42/x - Step 3: Cross multiply
1,643,558.74x = 2,268,067.53 × 918,412.42 - Step 4: Simplify right side
1,643,558.74x = 2,083,021,383,280.55 - Step 5: Solve for x
x = 2,083,021,383,280.55/1,643,558.74 - Step 6: Final answer
x = 1,267,384.81
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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.