Finding the Fourth Proportional to 1,089,470.12, 1,634,467.62 and 341,516.12
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Solution
The fourth proportional to 1,089,470.12, 1,634,467.62 and 341,516.12 is: 512,356.45
Step by Step Solution
- Step 1: Write the proportion equation
1,089,470.12 : 1,634,467.62 = 341,516.12 : x - Step 2: Convert to fraction form
1,089,470.12/1,634,467.62 = 341,516.12/x - Step 3: Cross multiply
1,089,470.12x = 1,634,467.62 × 341,516.12 - Step 4: Simplify right side
1,089,470.12x = 558,197,039,848.03 - Step 5: Solve for x
x = 558,197,039,848.03/1,089,470.12 - Step 6: Final answer
x = 512,356.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.