Finding the Fourth Proportional to 1,615,395.74, 2,229,292.78 and 890,290.13
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Solution
The fourth proportional to 1,615,395.74, 2,229,292.78 and 890,290.13 is: 1,228,626.09
Step by Step Solution
- Step 1: Write the proportion equation
1,615,395.74 : 2,229,292.78 = 890,290.13 : x - Step 2: Convert to fraction form
1,615,395.74/2,229,292.78 = 890,290.13/x - Step 3: Cross multiply
1,615,395.74x = 2,229,292.78 × 890,290.13 - Step 4: Simplify right side
1,615,395.74x = 1,984,717,345,542.07 - Step 5: Solve for x
x = 1,984,717,345,542.07/1,615,395.74 - Step 6: Final answer
x = 1,228,626.09
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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.