Finding the Fourth Proportional to 879,784.08, 1,326,268.90 and 821,194.08
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Solution
The fourth proportional to 879,784.08, 1,326,268.90 and 821,194.08 is: 1,237,944.85
Step by Step Solution
- Step 1: Write the proportion equation
879,784.08 : 1,326,268.90 = 821,194.08 : x - Step 2: Convert to fraction form
879,784.08/1,326,268.90 = 821,194.08/x - Step 3: Cross multiply
879,784.08x = 1,326,268.90 × 821,194.08 - Step 4: Simplify right side
879,784.08x = 1,089,124,169,168.11 - Step 5: Solve for x
x = 1,089,124,169,168.11/879,784.08 - Step 6: Final answer
x = 1,237,944.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.