Finding the Fourth Proportional to 1,615,811.90, 2,229,920.18 and 890,657.98
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Solution
The fourth proportional to 1,615,811.90, 2,229,920.18 and 890,657.98 is: 1,229,163.00
Step by Step Solution
- Step 1: Write the proportion equation
1,615,811.90 : 2,229,920.18 = 890,657.98 : x - Step 2: Convert to fraction form
1,615,811.90/2,229,920.18 = 890,657.98/x - Step 3: Cross multiply
1,615,811.90x = 2,229,920.18 × 890,657.98 - Step 4: Simplify right side
1,615,811.90x = 1,986,096,196,391.91 - Step 5: Solve for x
x = 1,986,096,196,391.91/1,615,811.90 - Step 6: Final answer
x = 1,229,163.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.