Finding the Fourth Proportional to 3,842,258.20, 5,763,387.30 and 3,605,867.80
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Solution
The fourth proportional to 3,842,258.20, 5,763,387.30 and 3,605,867.80 is: 5,408,801.70
Step by Step Solution
- Step 1: Write the proportion equation
3,842,258.20 : 5,763,387.30 = 3,605,867.80 : x - Step 2: Convert to fraction form
3,842,258.20/5,763,387.30 = 3,605,867.80/x - Step 3: Cross multiply
3,842,258.20x = 5,763,387.30 × 3,605,867.80 - Step 4: Simplify right side
3,842,258.20x = 20,782,012,683,998.94 - Step 5: Solve for x
x = 20,782,012,683,998.94/3,842,258.20 - Step 6: Final answer
x = 5,408,801.70
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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.