Finding the Fourth Proportional to 2,089,128.60, 3,134,729.70 and 1,191,259.80
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Solution
The fourth proportional to 2,089,128.60, 3,134,729.70 and 1,191,259.80 is: 1,787,480.90
Step by Step Solution
- Step 1: Write the proportion equation
2,089,128.60 : 3,134,729.70 = 1,191,259.80 : x - Step 2: Convert to fraction form
2,089,128.60/3,134,729.70 = 1,191,259.80/x - Step 3: Cross multiply
2,089,128.60x = 3,134,729.70 × 1,191,259.80 - Step 4: Simplify right side
2,089,128.60x = 3,734,277,475,476.06 - Step 5: Solve for x
x = 3,734,277,475,476.06/2,089,128.60 - Step 6: Final answer
x = 1,787,480.90
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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.