Finding the Fourth Proportional to 1,615,259.93, 2,229,073.71 and 890,133.66
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Solution
The fourth proportional to 1,615,259.93, 2,229,073.71 and 890,133.66 is: 1,228,392.72
Step by Step Solution
- Step 1: Write the proportion equation
1,615,259.93 : 2,229,073.71 = 890,133.66 : x - Step 2: Convert to fraction form
1,615,259.93/2,229,073.71 = 890,133.66/x - Step 3: Cross multiply
1,615,259.93x = 2,229,073.71 × 890,133.66 - Step 4: Simplify right side
1,615,259.93x = 1,984,173,535,291.81 - Step 5: Solve for x
x = 1,984,173,535,291.81/1,615,259.93 - Step 6: Final answer
x = 1,228,392.72
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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.