Finding the Fourth Proportional to 3,218,948.20, 4,828,422.30 and 1,089,101.80
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Solution
The fourth proportional to 3,218,948.20, 4,828,422.30 and 1,089,101.80 is: 1,633,652.70
Step by Step Solution
- Step 1: Write the proportion equation
3,218,948.20 : 4,828,422.30 = 1,089,101.80 : x - Step 2: Convert to fraction form
3,218,948.20/4,828,422.30 = 1,089,101.80/x - Step 3: Cross multiply
3,218,948.20x = 4,828,422.30 × 1,089,101.80 - Step 4: Simplify right side
3,218,948.20x = 5,258,643,418,090.14 - Step 5: Solve for x
x = 5,258,643,418,090.14/3,218,948.20 - Step 6: Final answer
x = 1,633,652.70
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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.